the novel compounds of the present invention may be readily prepared in accordance with the following schemes . the preferred method for producing 7 -( substituted )- 9 -[( substituted glycyl ) amido ]- 6 - demethyl - 6 - deoxytetracyclines or the mineral acid salts , 3 , is shown in scheme i . this method uses common intermediates which are easily prepared by reacting commercially available haloacyl halides of the formula : ## str21 ## wherein y , r 3 and r 4 are as defined hereinabove and q is halogen selected from bromine , chlorine , iodine and fluorine ; with 9 - amino - 7 -( substituted )- 6 - demethyl - 6 - deoxytetracycline or its mineral acid salt , 1 , to give straight or branched 9 -[( haloacyl ) amido ]- 7 -( substituted )- 6 - demethyl - 6 - deoxytetracyclines or mineral acid salts , 2 , in almost quantitative yield . the above intermediates , straight or branched 9 -[( haloacyl ) amido ]- 7 -( substituted )- 6 - demethyl - 6 - deoxytetracyclines or mineral acid salts , 2 , react with a wide variety of nucleophiles , especially amines , having the formula wh , wherein w is as defined hereinabove , to give a new 7 -( substituted )- 9 -[( substituted glycyl ) amido ]- 7 -( substituted )- 6 - demethyl - 6 - deoxytetracyclines or the mineral acid salts , 3 of the present invention . ## str22 ## in accordance with scheme i , 9 - amino - 7 -( substituted )- 6 - demethyl - 6 - deoxytetracycline or its mineral acid salt , 1 , is mixed with a ) a polar - aprotic solvent such as 1 , 3 - dimethyl - 3 , 4 , 5 , 6 - tetrahydro - 2 ( 1h ) pyrimidone , herein after called dmpu , hexamethylphosphoramide herein after called hmpa , dimethylformamide , dimethylacetamide , n - methylpyrrolidone , 1 , 2 - dimethoxyethane or equivalent thereof ; b ) an inert solvent such as acetonitrile , methylene chloride , tetrahydrofuran , chloroform , carbon tetrachloride , 1 , 2 - dichloroethane , tetrachloroethane , diethyl ether , t - butyl methyl ether , isopropyl ether or equivalent thereof ; c ) a base such as sodium carbonate , sodium bicarbonate , sodium acetate , potassium carbonate , potassium bicarbonate , triethylamine , cesium carbonate , lithium carbonate or bicarbonate equivalents ; and d ) a straight or branched haloacyl halide of the formula : ## str23 ## wherein y , r 3 , r 4 and q are as hereinabove defined , such as bromoacetyl bromide , chloroacetyl chloride , 2 - bromopropionyl bromide or equivalent thereof ; the halo , y , and halide , q , in the haloacyl halide can be the same or different halogen and is selected from bromine , chlorine , iodine and fluorine ; y is ( ch 2 ) n x , n = 0 - 5 , x is halogen ; e ) for 0 . 5 to 5 hours at from room temperature to the reflux temperature of the reaction ; to form the corresponding 9 -[( haloacyl ) amido - 7 -( substituted )- 6 - demethyl - 6 - deoxytetracycline , 2 , or its mineral acid salt . the intermediate , 9 -[( haloacyl ) amido ]- 7 -( substituted )- 6 - demethyl - 6 - deoxytetracycline or its mineral acid salt , 2 , is treated , under an inert atmosphere of helium , argon or nitrogen , with a ) a nucleophile wh such as an amine , substituted amine or equivalent thereof for example methylamine , dimethylamine , ethylamine , n - butylamine , propylamine or n - hexylamine ; b ) a polar - aprotic solvent such as dmpu , hmpa dimethylformamide , dimethylacetamide , n - methylpyrrolidone or 1 , 2 - dimethoxyethane ; c ) for from 0 . 5 - 2 hours at room temperature or under reflux temperature to produce the desired 7 -( substituted )- 9 -[( substituted glycyl ) amido ]- 6 - demethyl - 6 - deoxytetracycline , 3 , or its mineral acid salt . ## str24 ## in accordance with scheme ii , compounds of formula 3 are n - alkylated in the presence of formaldehyde and either a primary amine such as methylamine , ethylamine , benzylamine , methyl glycinate , ( l or d ) alanine , ( l or d ) lysine or their substituted congeners ; or a secondary amine such as morpholine , pyrrolidine , piperidine or their substituted congeners to give the corresponding mannich base adduct , 4 . the 7 -( substituted )- 9 [( substituted glycyl ) amido ]- 6 - demethyl - 6 - deoxytetracyclines may be obtained as metal complexes such as aluminum , calcium , iron , magnesium , manganese and complex salts ; inorganic and organic salts and corresponding mannich base adducts using methods known to those skilled in the art ( richard c . larock , comprehensive organic transformations , vch publishers , 411 - 415 , 1989 ). it is well known to one skilled in the art that an appropriate salt form is chosen based on physical and chemical stability , flowability , hygroscopicity and solubility . preferably , the 7 -( substituted )- 9 -[( substituted glycyl ) amido ]- 6 - demethyl - 6 - deoxytetracyclines are obtained as inorganic salt such as hydrochloric , hydrobromic , hydroiodic , phosphoric , nitric or sulfate ; or organic salt such as acetate , benzoate , citrate , cysteine or other amino acids , fumarate , glycolate , maleate , succinate , tartrate , alkylsulfonate or arylsulfonate . depending on the stochiometry of the acids used , the salt formation occurs with the c ( 4 )- dimethylamino group ( 1 equivalent of acid ) or with both the c ( 4 )- dimethylamino group and the w group ( 2 equivalents of acid ). the salts are preferred for oral and parenteral administration . some of the compounds of the hereinbefore described schemes have centers of asymmetry at the carbon bearing the w substituent . the compounds may , therefore , exist in at least two ( 2 ) stereoisomeric forms . the present invention encompasses the racemic mixture of stereoisomers as well as all stereoisomers of the compounds whether free from other stereoisomers or admixed with stereoisomers in any proportion of enantiomers . the absolute configuration of any compound may be determined by conventional x - ray crystallography . the stereochemistry centers on the tetracycline unit ( i . e . c - 4 , c - 4a , c - 5a and c - 12a ) remain intact throughout the reaction sequences . the minimum inhibitory concentration ( mic ), the lowest concentration of the antibiotic which inhibits growth of the test organism , is determined by the agar dilution method using 0 . 1 ml muller - hinton ii agar ( baltimore biological laboratories ) per well . an inoculum density of 1 - 5 × 10 5 cfu / ml , and an antibiotic concentrations range of 32 - 0 . 004 microgram / ml is used . mic is determined after the plates are incubated for 18 hours at 35 ° c . in a forced air incubator . the test organisms comprise strains that are sensitive to tetracycline and genetically defined strains that are resistant to tetracycline , due to inability to bind bacterial ribosomes ( tetm ). an in vitro , cell free , protein translation system using extracts from e . coli strain mre600 ( tetracycline sensitive ) and a derivative of mre600 containing the tetm determinant has been developed based on literature methods [ j . m pratt , coupled transcription - translation in prokaryotic cell - free systems , transcription and translation , a practical approach , ( b . d . hames and s . j . higgins , eds ) p . 179 - 209 , irl press , oxford - washington , 1984 ]. using the system described above , the tetracycline compounds of the present invention are tested for their ability to inhibit protein synthesis in vitro . briefly , each 10 microliter reaction contains s30 extract ( a whole extract ) made from either tetracycline sensitive cells or an isogenic tetracycline resistant ( tetm ) strain , low molecular weight components necessary for transcription and translation ( i . e . atp and gtp ), a mix of 19 amino acids ( no methionine ), 35 s labeled methionine , dna template ( either pbr322 or puc119 ), and either dmso ( control ) or the novel tetracycline compound to be tested (&# 34 ; novel tc &# 34 ;) dissolved in dmso . the reactions are incubated for 30 minutes at 37 ° c . timing is initiated with the addition of the s30 extract , the last component to be added . after 30 minutes , 2 . 5 μl of the reaction is removed and mixed with 0 . 5 ml of 1n naoh to destroy rna and trna . two ml of 25 % trichloroacetic acid is added and the mixture incubated at room temperature for 15 minutes . the trichloroacetic acid precipitated material is collected on whatman gf / c filters and washed with a solution of 10 % trichloroacetic acid . the filters are dried and the retained radioactivity , representing incorporation of 35 s - methionine into polypeptides , is counted using standard liquid scintillation methods . the percent inhibition ( p . i .) of protein synthesis is determined to be : ## equ1 ## the therapeutic effects of tetracyclines are determined against an acute lethal infection with staphylococcus aureus strain smith ( tetracycline sensitive ). female , mice , strain cd - 1 ( charles river laboratories ), 20 ± 2 grams , are challenged by an intraperitoneal injection of sufficient bacteria ( suspended in hog mucin ) to kill non - treated controls within 24 - 48 hours . antibacterial agents , contained in 0 . 5 ml of 0 . 2 % aqueous agar , are administered subcutaneously or orally 30 minutes after infection . when an oral dosing schedule is used , animals are deprived of food for 5 hours before and 2 hours after infection . five mice are treated at each dose level . the 7 day survival ratios from 3 separate tests are pooled for calculation of median effective dose ( ed 50 ). the claimed compounds exhibit antibacterial activity against a spectrum of tetracycline sensitive and resistant gram - positive and gram - negative bacteria , especially , strains of e . coli , s . aureus and e . faecalis , containing tetm and tetd resistance determinants ; and e . coli containing the tetb and tetd resistance determinants . notable are compounds d , g , and k , as shown in table i , which demonstrated excellent in vitro activity against tetracycline resistant strains containing the tetm resistance determinant ( such as s . aureus ubms 88 - 5 , s . aureus ubmds 90 - 1 and 90 - 2 , e . coli ubms 89 - 1 and 90 - 4 ) and tetracycline resistant strains containing tetb resistance determinants ( such as e . coli ubms 88 - 1 and e . coli tn10c tetb ). these compounds also have good activity against e . coli teta , e . coli tetc and e . coli tetd and are equally as effective as minocycline against susceptible strains and are superior to that of minocycline against a number of recently isolated bacteria from clinical sources ( table i ). minocycline and compounds b , c , d , g and h are assayed in vitro for their ability to inhibit protein synthesis taking place on either wild type or tetm protected ribosomes using a coupled transcription and translation system . all compounds are found to effectively inhibit protein synthesis occuring on wild type ribosomes , having equivalent levels of activity . minocycline is unable to inhibit protein synthesis occurring on tetm protected ribosomes . in contrast , compounds b , c , d , g and h are effective at inhibiting protein synthesis occurring on tetm protected ribosomes ( table ii ). compounds b , c , d , g and h bind reversibly to its target ( the ribosome ) since bacterial growth resumes when the compound is removed from cultures by washing of the organism . therefore , the ability of these compounds to inhibit bacterial growth appears to be a direct consequence of its ability to inhibit protein synthesis at the ribosome level . the activity of compound g against tetracycline susceptible organisms is also demonstrated in vivo in animals infected with s . aureus smith with ed 50 &# 39 ; s between 1 - 2 mg / kg when administered intravenously , and ed 50 &# 39 ; s of 4 - 8 mg / kg when given orally . the improved efficacy of compounds d , g and k is demonstrated by the in vitro activity against isogenic strains into which the resistance determinants , such as tetm and tetb , were cloned ( table i ); and the inhibition of protein synthesis by tetm ribosomes ( table ii ). as can be seen from table i and ii , compounds of the invention may also be used to prevent or control important veterinary diseases such as diarrhea , urinary tract infections , infections of skin and skin structure , ear , nose and troat infections , wound infections , mastitis and the like . ______________________________________compound legend for tables______________________________________a [ 7s -( 7alpha10aalpha )]- n -[ 9 -( aminocarbonyl )- 4 , 7 - bis ( dimethylamino )- 5 , 5a , 6 , 6a , 7 , 10 , 10a , 12 - octahydro - 1 , 8 , 10a , 11 - tetrahydroxy - 10 , 12 - dioxo - 2 - naphthacenyl ]- 1 -( trifluoroacetyl )- 2 - pyrrolidinecarboxamide dihydrochlorideb [ 4s -( 4alpha ,- 12aalpha )]- 4 , 7 - bis ( dimethyl - amino )- 1 , 4 , 4a , 5 , 5a , 6 , 11 , 12a - octahydro - 3 , 10 , 12 , 12a - tetrahydroxy - 9 -[[[( 2 -( methoxyethyl )- amino ] acetyl ] amino ]- 1 , 11 - dioxo - 2 - naphthacene - carboxamide dihydrochloridec [ 4s -( 4alpha , 12aalpha )]- 9 -[[[( 2 2 - diethoxy - ethyl ) amino ] acetyl ] amino ]- 4 , 7 - bis ( dimethyl - amino )- 1 , 4 , 4a , 5 , 5a , 6 , 11 , 12a - octahydro - 3 , 10 , 12 , 12a - tetrahydroxy - 1 , 11 - dioxo - 2 - naphthacene - carboxamide dihydrochlorided [ 4s -( 4alpha 12aalpha )]- 4 , 7 - bis ( dimethyl - amino )- 1 , 4 , 4a , 5 , 5a , 6 , 11 , 12a - octahydro - 3 , 10 , 12 , 12a - tetrahydroxy - 1 , 11 - dioxo - 9 -[[( 2 - pro - penylamino ) acetyl ] amino ]- 2 - naphthacenecarbox - amide dihydrochloridee [ 4s -( 4alpha , 12aalpha ) ]- 4 , 7 - bis ( dimethyl - amino )- 1 , 4 , 4a , 5 , 5a , 6 , 11 , 12a - octahydro - 3 , 10 , 12 , 12a - tetrahydroxy - 1 , 11 - dioxo - 9 -[[[( 2 - pyridinylmethyl ) amino ] acetyl ] amino - 2 - naphtha - cenecarboxamide dihydrochloridef [ 7s -( 7alpha , 19aalpha )]- n -[ 9 -( aminocarbonyl )- 4 , 7 - bis ( dimethylamino )- 5 , 5a , 6 , 6a , 7 , 10 , 10a , 12 - octahydro - 1 , 8 , 10a , 11 - tetrahydroxy - 10 , 12 - dioxo - 2 - naphthacenyl ]- 4 - thiomorpholineacet - amide dihydrochlorideg [ 7s -( 7alpha , 10aalpha ) ]- n - [ 9 -( aminocarbonyl )- 4 , 7 - bis ( dimethylamino )- 5 , 5a , 6 , 6a , 7 , 10 , 10a , 12 - octahydro - 1 , 8 , 10a , 11 - tetrahydroxy - 10 , 12 - dioxo - 2 - naphthacenyl ]- 4 - methyl - 1 - piperidine - acetamide dihydrochlorideh [ 4s -( 4alpha , 12aalpha )]- 4 , 7 - bis ( dimethyl - amino )- 1 , 4 , 4a , 5 , 5a , 6 , 11 , 12a - octahydro - 3 , 10 , 12 , 12a - tetrahydroxy - 9 -[[[( 3 - methoxypropyl )- amino ] acetyl ] amino ]- 1 , 11 - dioxo - 2 - naphthacene - carboxamide dihydrochloridei 7 [ 7s -( 7alpha , 10aalpha )]- n -[ 9 -( aminocarbonyl )- 4 , 7 - bis ( dimethylamino )- 5 , 5a , 6 , 6a , 7 , 10 , 10a , 12 - octahydro - 1 , 8 , 10a , 11 - tetrahydroxy - 10 - 12 - dioxo - 2 - naphthacenyl ]- 4 - methyl - 1 - piperazine - acetamide dihydrochloridej [ 4s -( 4alpha , 12aalpha )]- 4 , 7 - bis ( dimethyl - amino )- 9 -[[( heptylamino ) acetyl amino ]- 1 , 4 , 4a , 5 , 5a , 6 , 11 , 12a - octahydro - 3 , 10 , 12 , 12a - tetra - hydroxy - 1 , 11 - dioxo - 2 - naphthacenecarboxamide dihydrochloride . k [ 4s -( 4alpha , 12aalpha )]- 9 -[[( cyclopropyl - methyl ) amino ] acetyl ] amino ]- 4 , 7 - bis ( dimethyl - amino )- 1 , 4 - 4a , 5 , 5a , 6 , 11 , 12a - octahydro - 3 , 10 12 -, 12a - tetrahydroxy - 1 - 11 - dioxo - 2 - naphthacene - carboxamide dihydrochloridel [ 4s -( 4alpha , 12aalpha )]- 4 , 7 - bis ( dimethyl - amino )- 1 , 4 , 4a , 5 , 5a , 6 , 11 , 12a - octahydro - 3 , 10 , 12 , 12a - tetrahydroxy - 1 , 11 - dioxo - 9 -[[( undecyl - amino ) acetyl ] amino ]- 2 - naphthacenecarboxamide dihydrochloridem [ 4s -( 4alpha , 12aalpha )]- 9 -[( bromoacetyl )- amino ]- 4 , 7 - bis ( dimethylamino )- 1 , 4 , 4a , 5 , 5a , 6 , 11 , 12a - octahydro - 3 , 10 , 12 , 12a - tetrahydroxy - 1 , 11 - dioxo - 2 - naphthacenecarboxamide dihydro - chloriden tetracyclineo minocyclinep [ 4s -( 4alpha , 12aalpha )]- 4 , 7 - bis ( dimethyl - amino )- 1 , 4 , 4a , 5 , 5a , 6 , 11 , 12a - octahydro - 3 , 10 ,- 12 , 12a - tetrahydroxy - 9 -[[[( 2 - hydroxyethyl )- amino ] acetyl ] amino ]- 1 , 11 - dioxo - 2 - naphthacene - carboxamide monohydrochlorideq [ 4s -( 4alpha , 12aalpha )]- 4 , 7 - bis ( dimethyl - amino )- 1 , 4 , 4a , 5 , 5a , 6 , 11 , 12a - octahydro - 3 , 10 ,- 12 , 12a - tetrahydroxy - 9 -[[[( 2 - hydroxyethyl )- methylamino ] acetyl ] amino - 1 , 11 - dioxo - 2 - naphthacenecarboxamider [ 4s -( 4alpha , 12aalpha )]- 4 , 7 - bis ( dimethyl - 4 - amino - 1 - amino )- 1 , 4 , 4a , 5 , 5a , 6 , 11 , 12a - octa - hydro - 3 , 10 , 12 , 12a - tetrahydroxy - 9 -[[[( 4 - ( hydroxybutyl ) amino ] acetyl ] amino ]- 1 , 11 - dioxo - 2 - naphthacenecarboxamides [ 4s -( 4alpha , 12aalpha )]- 4 , 7 - bis ( dimethyl - amino )- 1 , 4 , 4a , 5 , 5a , 6 , 11 , 12a - octahydro - 3 , 10 ,- 12 , 12a - tetrahydroxy - 1 , 11 - dioxo - 9 -[[[ 2 , 2 , 2 - trifluoroethyl ) amino ] acetyl ] amino - 2 - naphtha - cenecarboxamidet [ 4s -( 4alpha , 12aalpha )]- 4 , 7 - bis ( dimethyl - amino )- 9 -[[[( 2 - fluoroethyl ) amino ] acetyl ]- amino ]- 1 , 4 , 4a , 5 , 5a , 6 , 11 , 12a - octahydro - 3 , 10 , 12 , 12a - tetrahydroxy - 1 , 11 - dioxo - 2 - naphthacenecarboxamideu [ 4s -( 4alpha , 12aalpha )]- 4 , 7 - bis ( dimethyl - amino )- 1 , 4 , 4a , 5 , 5a , 6 , 11 , 12a - octahydro - 3 , 10 , 12 , 12a - tetrahydroxy - 1 , 11 - dioxo - 9 - [[[[ 2 -( 1 - piperidinyl ) ethyl ] amino ] acetyl ]- amino ]- 2 - naphthacenecarboxamidev [ 4s -( 4alpha , 12aalpha )]- 4 , 7 - bis ( dimethyl - amino )- 1 , 4 , 4a , 5 , 5a , 6 , 11 , 12a - octahydro - 3 , 10 ,- 12 , 12a - tetrahydroxy - 9 -]]] methyl - 2 - propynyl - amino ] acetyl ] amino ]- 1 , 11 - dioxo - 2 - naphtha - cenecarboxamidew [ 4s -( 4alpha , 12aalpha )]- 4 , 7 - bis ( dimethyl - amino )- 1 , 4 , 4a , 5 , 5a , 6 , 11 , 12a - octahydro - 3 , 10 ,- 12 , 12a - tetrahydroxy - hydroxy - 1 , 11 - dioxo - 9 - [[( 1 - peperidinylamino ) acetyl ] amino ]- 2 - naphthacenecarboxamidex [ 4s -( 4 - alpha , 12aalpha )]- 4 , 7 - bis ( dimethyl - amino )- 1 , 4 , 4a , 5 , 5a , 6 , 11 , 12a - octahydro - 3 , 10 ,- 12 , 12a - tetrahydroxy - 1 , 11 - dioxo - 9 -[[[( phenyl - methoxy ) amino ] acetyl ] amino ]- 2 - naphthacene - carboxamide______________________________________ table i__________________________________________________________________________antibacterial activity of 9 -[( substituted glycyl ) amido ]- 6 - demethyl - 6 - deoxytetracyclinesmic ( μg / ml ) __________________________________________________________________________ compoundorganism a b c d e f g h i j k l__________________________________________________________________________e . coli ubms 88 - 1 tet b 8 2 16 1 16 & gt ; 32 2 2 8 2 0 . 5 32e . coli j3272 tet sens . 8 2 8 0 . 5 nt & gt ; 32 1 1 nt nt nt nte . coli mc 4100 tet sens . nt nt nt nt 2 nt nt nt 1 1 0 . 12 2e . coli prp1 tet a & gt ; 32 8 & gt ; 32 8 32 & gt ; 32 2 4 16 2 4 32e . coli mc 4100 tnioc tet b 8 2 8 1 nt & gt ; 32 2 2 nt nt nt nte . coli j3272 tet c 8 4 16 1 16 & gt ; 32 1 1 8 2 0 . 5 32e . coli ubms 89 - 1 tet m 8 2 4 0 . 5 8 & gt ; 32 0 . 5 2 8 0 . 5 0 . 5 16e . coli ubms 8902 tet sens . 8 2 8 0 . 5 16 & gt ; 2 2 1 8 2 0 . 5 16e . coli j2175 8 2 8 0 . 5 16 & gt ;= 1 1 8 2 0 . 5 16e . coli baj9003 imp mut 1 0 . 25 0 . 5 0 . 1 1 0 . 5 0 . 12 0 . 12 0 . 5 0 . 25 0 . 12 1e . coli ubms 90 - 4 tet m nt 2 4 0 . 5 8 & gt ; 32 1 1 8 2 0 . 5 32e . coli 90 - 5 4 2 8 0 . 5 16 & gt ; 32 2 1 8 2 0 . 5 16e . coli # 311 ( mp ) 8 2 8 0 . 5 8 & gt ; 32 1 1 8 2 0 . 5 8e . coli atcc 25922 8 2 8 0 . 5 8 32 1 1 8 2 0 . 5 8e . coli j3272 tet d 2 1 4 0 . 25 8 16 0 . 25 0 . 5 4 2 0 . 25 32s . mariescens fpor 8733 & gt ; 32 & gt ; 32 & gt ; 32 8 & gt ; 32 & gt ; 32 16 16 & gt ; 32 16 8 & gt ; 32x . maltophilia nemc 87210ps . acruginosa atcc 27853 & gt ; 32 & gt ; 32 & gt ; 32 16 & gt ; 32 & gt ; 32 32 32 & gt ; 32 & gt ; 32 16 & gt ; 32s . aureus nemc 8769 1 0 . 5 0 . 25 0 . 12 8 0 . 25 0 . 12 0 . 25 0 . 5 no 1 0 . 5 growths . aureus ubms 88 - 4 4 0 . 5 1 0 . 25 8 1 0 . 5 1 2 0 . 5 0 . 5 0 . 5s . aureus ubms 88 - 5 tet m 4 1 1 0 . 25 8 1 0 . 5 0 . 5 4 0 . 5 1 16s . aureus ubms 88 - 7 tet k 16 16 8 8 32 4 0 . 5 8 16 1 4 2s . aureus ubms 90 - 1 tet m 8 2 1 0 . 5 8 1 0 . 5 2 8 1 1 16s . aureus ubms 90 - 3 1 0 . 5 0 . 5 0 . 25 4 1 0 . 5 0 . 5 2 0 . 5 0 . 5 0 . 5s . aureus ubms 90 - 2 tet m 2 0 . 5 1 0 . 25 8 1 0 . 5 0 . 5 2 0 . 5 0 . 5 4s . aureus ives 2943 16 32 8 8 & gt ; 32 4 0 . 5 16 & gt ; 32 0 . 5 8 16s . aureus rose ( mp ) 32 32 16 8 & gt ; 32 8 1 16 & gt ; 32 2 8 16s . aureus smith ( mp ) 2 0 . 5 0 . 5 0 . 12 4 0 . 5 0 . 5 0 . 5 0 . 5 0 . 5 0 . 5 0 . 5s . aureus ives 1 983 16 32 16 8 & gt ; 32 4 0 . 5 16 & gt ; 32 1 8 16s . aureus atcc 29213 4 1 1 0 . 25 8 1 0 . 5 1 2 0 . 5 1 1s . hemolyticus avhah 88 - 3 8 2 2 0 . 5 16 4 1 2 16 2 2 8entertroccoccus 12201 0 . 5 0 . 5 1 0 . 25 4 1 0 . 25 0 . 5 2 0 . 5 0 . 25 4e . faecalis atcc 29212 2 0 . 25 0 . 5 0 . 12 2 0 . 25 0 . 12 0 . 25 1 0 . 25 0 . 25 2__________________________________________________________________________ compoundorganism m n o p q r s t u v w x__________________________________________________________________________e . coli ubms 88 - 1 tet b & gt ; 32 & gt ; 32 16 & gt ; 32 32 & gt ; 32 32 16 & gt ; 32 & gt ; 32 & gt ; 32 & gt ; 32e . coli j3272 tet sens . 16 0 . 5 0 . 5 nt nt nt nt nt nt nt nt nte . coli mc 4100 tet sens . nt nt nt 4 4 8 16 2 4 32 32 4e . coli prp1 tet a & gt ; 32 32 4 & gt ; 32 & gt ; 32 & gt ; 32 & gt ; 32 & gt ; 32 & gt ; 32 & gt ; 32 & gt ; 32 & gt ; 32e . coli mc 4100 tnioc tet b & gt ; 32 & gt ; 32 8 & gt ; 32 & gt ; 32 & gt ; 32 & gt ; 32 16 32 & gt ; 32 & gt ; 32 & gt ; 32e . coli j3272 tet c & gt ; 32 & gt ; 32 2 & gt ; 32 & gt ; 32 & gt ; 32 & gt ; 32 & gt ; 32 16 & gt ; 32 & gt ; 32 & gt ; 32e . coli ubms 89 - 1 tet m 4 8 8 & gt ; 32 32 32 32 8 16 & gt ; 32 & gt ; 32 16e . coli ubms 8902 tet sens . 32 1 0 . 5 & gt ; 32 32 32 & gt ; 32 16 32 & gt ; 32 & gt ; 32 & gt ; 32e . coli j2175 32 1 0 . 5 32 32 32 & gt ; 32 16 32 & gt ; 32 & gt ; 32 & gt ; 32e . coli baj9003 imp mut 0 . 25 0 . 25 0 . 03 2 2 4 1 1 2 4 16 1e . coli ubms 90 - 4 tet m nt 16 & gt ; 3 32 16 32 & gt ; 32 8 16 & gt ; 32 & gt ; 32 & gt ; 32e . coli 90 - 5 16 1 0 . 5 32 32 32 & gt ; 32 16 16 & gt ; 32 & gt ; 32 & gt ; 32e . coli # 311 ( mp ) 8 1 0 . 25 16 32 8 & gt ; 32 8 8 & gt ; 32 & gt ; 32 16e . coli atcc 25922 16 0 . 5 0 . 5 16 32 32 & gt ; 32 8 16 & gt ; 32 & gt ; 32 16e . coli j3272 tet d 32 & gt ; 32 8 16 32 8 & gt ; 32 8 8 & gt ; 32 & gt ; 32 16s . mariescens fpor 8733 & gt ; 32 32 2 & gt ; 32 16 8 & gt ; 32 & gt ; 32 & gt ; 32 & gt ; 32 & gt ; 32 & gt ; 32x . maltophilia nemc 87210 & gt ; 32 8 8 16 16 16 32 & gt ; 32 16ps . acruginosa atcc 27853 & gt ; 32 8 8 & gt ; 32 & gt ; 32 & gt ; 32 & gt ; 32 & gt ; 32 & gt ; 32 & gt ; 32 & gt ; 32 & gt ; 32s . aureus nemc 8769 0 . 12 0 . 03 & lt ; 0 . 015 4 8 8 4 4 8 4 & gt ; 32 1s . aureus ubms 88 - 4 0 . 5 0 . 06 0 . 03 8 8 8 4 4 8 4 & gt ; 32 1s . aureus ubms 88 - 5 tet m 1 & gt ; 32 4 32 16 32 8 4 16 8 & gt ; 32 2s . aureus ubms 88 - 7 tet k 2 & gt ; 32 0 . 12 32 32 32 32 & gt ; 32 16 32 & gt ; 32 4s . aureus ubms 90 - 1 tet m 2 32 4 32 32 32 16 4 32 16 & gt ; 32 2s . aureus ubms 90 - 3 0 . 5 0 . 06 0 . 03 8 8 8 4 2 8 4 16 1s . aureus ubms 90 - 2 tet m 0 . 5 32 2 16 16 16 4 4 8 8 & gt ; 32 2s . aureus ives 2943 4 & gt ; 32 2 & gt ; 32 & gt ; 32 & gt ; 32 & gt ; 32 & gt ; 32 & gt ; 32 & gt ; 32 & gt ; 32 8s . aureus rose ( mp ) 8 & gt ; 32 0 . 5 & gt ; 32 & gt ; 32 & gt ; 32 & gt ; 32 & gt ; 32 & gt ; 32 & gt ; 32 & gt ; 32 16s . aureus smith ( mp ) 0 . 5 0 . 06 0 . 03 4 8 8 1 1 8 4 16 0 . 5s . aureus ives 1 983 4 & gt ; 32 2 & gt ; 32 & gt ; 32 & gt ; 32 & gt ; 32 & gt ; 32 & gt ; 32 & gt ; 32 & gt ; 32 8s . aureus atcc 29213 0 . 5 0 . 6 0 . 03 8 16 16 4 4 8 4 32 1s . hemolyticus avhah 88 - 3 2 0 . 5 0 . 12 32 16 32 16 8 32 32 & gt ; 32 4entertroccoccus 12201 1 32 8 8 4 8 4 2 8 8 & gt ; 32 4e . faecalis atcc 29212 0 . 5 8 1 4 4 8 2 1 8 4 & gt ; 32 1__________________________________________________________________________ nt = not tested table ii______________________________________in vitro transcription and translationsensitivity to tetracycline compounds % inhibitioncompound conc . wild type s30 tetm s30______________________________________b 1 . 0 mg / ml 98 97 0 . 25 mg / ml 96 95 0 . 06 mg / ml 92 91c 1 . 0 mg / ml 98 96 0 . 25 mg / ml 95 84 0 . 06 mg / ml 88 65d 1 . 0 mg / ml 99 98 0 . 25 mg / ml 98 96 0 . 06 mg / ml 93 83g 1 . 0 mg / ml 99 99 0 . 25 mg / ml 97 92 0 . 06 mg / ml 90 83h 1 . 0 mg / ml 99 98 0 . 25 mg / ml 96 94 0 . 06 mg / ml 88 85o 1 . 0 mg / ml 98 68 0 . 25 mg / ml 89 43 0 . 06 mg / ml 78 0______________________________________ when the compounds are employed as antibacterials , they can be combined with one or more pharmaceutically acceptable carriers , for example , solvents , diluents and the like , and may be administered orally in such forms as tablets , capsules , dispersible powders , granules , or suspensions containing , for example , from about 0 . 05 to 5 % of suspending agent , syrups containing , for example , from about 10 to 50 % of sugar , and elixirs containing for example , from about 20 to 50 % ethanol and the like , or parenterally in the form of sterile injectable solutions or suspensions containing from about 0 . 05 to 5 % suspending agent in an isotonic medium . such pharmaceutical preparations may contain , for example , from about 25 to about 90 % of the active ingredient in combination with the carrier , more usually between about 5 % and 60 % by weight . an effective amount of compound from 2 . 0 mg / kg of body weight to 100 . 0 mg / kg of body weight should be administered one to five times per day via any typical route of administration including but not limited to oral , parenteral ( including subcutaneous , intravenous , intramuscular , intrasternal injection or infusion techniques ), topical or rectal , in dosage unit formulations containing conventional non - toxic pharmaceutically acceptable carriers , adjuvants and vehicles . it will be understood , however , that the specific dose level and frequency of dosage for any particular patient may be varied and will depend upon a variety of factors including the activity of the specific compound employed , the metabolic stability and length of action of that compound , the age , body weight , general health , sex , diet , mode and time of administration , rate of excretion , drug combination , the severity of the particular condition , and the host undergoing therapy . these active compounds may be administered orally as well as by intravenous , intramuscular , or subscutaneous routes . solid carriers include starch lactose , dicalcium phosphate , microcrystalline cellulose , sucrose and kaolin , while liquid carriers include sterile water , polyethylene glycols , non - ionic surfactants and edible oils such as corn , peanut and sesame oils , as are appropriate to the nature of the active ingredient and the particular form of administration desired . adjuvants customarily employed in the preparation of pharmaceutical compositions may be advantageously included , such as flavoring agents , coloring agents , preserving agents , and antioxidants , for example , vitamin e , ascorbic acid , bht and bha . the preferred pharmaceutical compositions from the standpoint of ease of preparation and administration are solid compositions , particularly tablets and hard - filled or liquid - filled capsules . oral administration of the compounds is preferred . these active compounds may also be administered parenterally or intraperitoneally . solutions or suspensions of these active compounds as a free base or pharmacologically acceptable salt can be prepared in glycerol , liquid , polyethylene glycols and mixtures thereof in oils . under ordinary conditions of storage and use , these preparations contain a preservative to prevent the growth of microorganisms . the pharmaceutical forms suitable for injectable use include sterile aqueous solutions or dispersions and sterile powders for the extemporaneous preparation of sterile injectable solutions or dispersions . in all cases , the form must be sterile and must be fluid to the extent that easy syringability exists . it must be stable under the conditions of manufacture and storage and must preserve against the contaminating action of microorganisms such as bacterial and fungi . the carrier can be a solvent or dispersion medium containing , for example , water , ethanol , polyol ( e . g ., glycerol , propylene glycol and liquid polyethylene glycol ), suitable mixtures thereof , and vegetable oil . the invention will be more fully described in conjunction with the following specific examples which are not be construed as limiting the scope of the invention . to a room temperature solution of 0 . 334 g of 9 - amino - 4 , 7 - bis ( dimethylamino )- 6 - demethyl - 6 - deoxytetracycline disulfate , 6 ml of 1 , 3 - dimethyl - 3 , 4 , 5 , 6 - tetrahydro - 2 ( 1h )- pyrimidinone , hereinafter called dmpu , and 2 ml of acetonitrile is added 0 . 318 g of sodium carbonate . the mixture is stirred for 5 minutes followed by the addition of 0 . 068 g of chloroacetyl chloride . the reaction is stirred for 30 minutes , filtered , and the filtrate added dropwise to 100 ml of diethyl ether , containing 1 ml of 1m hydrochloric acid in diethyl ether . the resulting solid is collected and dried to give 0 . 340 g of the desired intermediate . ms ( fab ): m / z 549 ( m + h ). the title compound is prepared by the procedure of example 1 , using 6 . 68 g of 9 - amino - 4 , 7 - bis ( dimethylamino - 6 - demethyl - 6 - deoxytetracycline disulfate , 50 ml of dmpu , 30 ml of acetonitrile , 6 . 68 g of sodium carbonate and 0 . 215 g of bromoacetyl bromide . 5 . 72 g of the desired intermediate is obtained . ms ( fab ): m / z 593 ( m + h ). the title compound is prepared by the procedure of example 1 , using 1 . 00 g of 9 - amino - 4 , 7 - bis ( dimethylamino )- 6 - demethyl - 6 - deoxytetracycline disulfate , 1 . 0 g of sodium carbonate and 0 . 648 g of 2 - bromopropionyl bromide to give 0 . 981 g of the desired product . ms ( fab ): m / z 607 ( m + h ). the title compound is prepared by the procedure of example 1 , using 1 . 34 g of 9 - amino - 4 , 7 - bis ( dimethylamino )- 6 - demethyl - 6 - deoxytetracycline disulfate , 1 . 3 of sodium carbonate , 24 ml of dmpu , 8 ml of acetonitrile and 0 . 389 g of 4 - bromobutyryl chloride to give 1 . 45 g of the desired product . the title compound is prepared by the procedure of example 1 , using 0 . 334 g of 9 - amino - 4 , 7 - bis ( dimethylamino )- 6 - demethyl - 6 - deoxytetracycline disulfate , 10 ml of dmpu , 2 ml of acetonitrile , 0 . 34 g of sodium carbonate and 7 . 5 ml of 0 . 1m ( s )-(-)- n -( trifluoroacetyl ) propyl chloride to give 0 . 292 g of the desired product . ms ( fab ): m / z 666 ( m + h ). a mixture of 0 . 20 g of product from example 2 , 0 . 50 g of ( aminomethyl ) cyclopropane and 5 ml of dmpu , under argon , is stirred at room temperature for 1 hour . the excess amine is removed in vacuo and the residue diluted with a small volume of methyl alcohol . the diluted reaction solution is added dropwise to a misture of diethyl ether and 5 ml of 2 - propanol . 1m hydrochloric acid in diethyl ether is added until a solid is formed . the resulting solid is collected and dried to give 0 . 175 g of the desired product . ms ( fab ): m / z 584 ( m + h ). substantially following the methods described in detail herein above in example 6 , the compounds of this invention listed below in examples 7 - 16 are prepared . __________________________________________________________________________example starting material ms ( fab ):# name prod . of exp . reactant rx time m / z__________________________________________________________________________7 [ 4s -( 4alpha , 12aalpha )]- 9 -[[[( 2 , 2 - 2 or 1 2 , 2 - diethoxy - 3 hrs . 646 ( m + h ) diethoxyethyl ) amino ] acetyl ] amino ]- 4 , 7 - ethylaminebis ( dimethylamino )- 1 , 4 , 4a , 5 , 5a , 6 , 11 ,- 12a - octahydro - 3 , 10 , 12 , 12a - tetrahydroxy - 1 , 11 - dioxo - 2 - naphthacenecarboxamidedihydrochloride8 [ 4s -( 4alpha , 12aalpha )]- 4 , 7 - bis ( dimethyl - 2 or 1 2 - methoxy - 2 hr . 588 ( m + h ) amino )- 1 , 4 , 4a , 5 , 5a , 6 , 11 , 12a - octahydro - ethylamine3 , 10 , 12 , 12a - tetrahydroxy - 9 -[[[ 2 -( methoxy - ethyl ) amino ] acetyl ] amino ]- 1 , 11 - dioxo - 2 - naphthacenecarboxamide dihydrochloride9 [ 4s -( 4alpha , 12aalpha )]- 4 , 7 - bis ( di - 2 or 1 allylamine 2 hr . 570 ( m + h ) methylamino )- 1 , 4 , 4a , 5 , 5a , 6 , 11 , 12a - octa - hydro - 3 , 10 , 12 , 12a - tetrahydroxy - 1 , 11 - dioxo - 9 -[[( 2 - propenylamino ) acetyl ] amino ]- 2 - naphthacenecarboxamide dihydrochloride10 [ 4s -( 4alpha , 12aalpha )]- 4 , 7 - bis ( dimethyl - 2 or 1 3 - methoxy - 2 hr . 602 ( m + h ) amino )- 1 , 4 , 4a , 5 , 5a , 6 , 11 , 12a - octahydro - propylamine3 , 10 , 12 , 12a - tetrahydroxy - 9 -[[[( 3 - methoxy - propyl ) amino ] acetyl ] amino ]- 1 , 11 - dioxo - 2 - naphthacenecarboxamide dihydrochloride11 [ 7s -( 7alpha , 10aalpha )]- n -[ 9 -( aminocar - 2 thiomorpholine 3 hr . 616 ( m + h ) bonyl )- 4 , 7 - bis ( dimethylamino )- 5 , 5a , 6 , 6a , 7 , 10 , 10a , 12 - octahydro - 1 , 8 , 10a , 11 - tetra - hydroxy - 10 , 12 - dioxo - 2 - naphthacenyl ]- 4 - thiomorpholineacetamide dihydrochloride12 [ 7s -( 7alpha , 10aalpha )]- n -[ 9 -( amino - 2 4 - methylpiperi - 2 hrs . 612 ( m + h ) carbonyl )- 4 , 7 - bis ( dimethylamino )- 5 , 5a ,- dine6 , 6a , 7 , 10 , 10a , 12 - octahydro - 1 , 8 , 10a , 11 - tetrahydroxy - 10 , 12 - dioxo - 2 - naphthacenyl ]- 4 - methyl - 1 - piperidineacetamidedihydrochloride13 [ 7s -( 7alpha , 10aalpha )]- n -[ 9 -( aminocar - 2 4 - methyl - 1 - 0 . 75 hr . 613 ( m + h ) bonyl )- 4 , 7 - bis ( dimethylamino )- 5 , 5a , 6 ,- piperazine6a , 7 , 10 , 10a , 12 - octahydro - 1 , 8 , 10a , 11 - tetrahydroxy - 10 , 12 - dioxo - 2 - naphtha - cenyl ]- 4 - methyl - 1 - piperazineacetamidedihydrochloride14 [ 4s -( 4alpha , 12aalpha )]- 4 , 7 - bis ( di - 2 n - heptylamine 2 hr . 628 ( m + h ) methylamino )- 9 -[[( heptylamino ) acetyl ] amino ]- 1 , 4 , 4a , 5 , 5a , 6 , 11 , 12a - octahydro - 3 , 10 , 12 , 12a - tetrahydroxy - 1 , 11 - dioxo - 2 - naphthacenecarboxamide dihydrochloride15 [ 4s -( 4alpha , 12aalpha )]- 4 , 7 - bis ( dimethyl - 2 undecylamine 3 . 5 hr . 684 ( m + h ) amino )- 1 , 4 , 4a , 5 , 5a , 6 , 11 , 12a - octahydro - 3 , 10 , 12 , 12a - tetrahydroxy - 1 , 11 - dioxo - 9 -[[( undecylamino ) acetyl ] amino ]- 2 - naphthacenecarboxamide dihydrochloride16 ( 4s -( 4alpha , 12aalpha )]- 4 , 7 - bis ( dimethyl - 2 2 -( aminomethyl ) 1 . 5 hr . 621 ( m + h ) amino )- 1 , 4 , 4a , 5 , 5a , 6 , 11 , 12a - octahydro - pyridine3 , 10 , 12 , 12a - tetrahydroxy - 1 , 11 - dioxo - 9 -[[[( 2 - pyridinylmethyl ) amino ] acetyl ] amido ]- 2 - naphthacenecarboxamide dihydrochloride__________________________________________________________________________ to a solution of 0 . 10 g of product from example 7a in 2 ml of 1 , 3 - dimethyl - 2 - imidazolidinone is added 0 . 70 ml of 2 - amino - 1 - ethanol . the solution is stirred at room temperature for 20 minutes , added to 100 ml of diethyl ether and the resulting precipitate collected to give 0 . 055 g of the desired product . ms ( fab ): m / z 574 ( m + h ). substantially following the method described in detail hereinabove in example 17 , the compounds of this invention listed below in examples 18 - 24 are prepared . __________________________________________________________________________example starting material ms ( fab ):# name prod . of exp . reactant rx time m / z__________________________________________________________________________18 [ 4s -( 4alpha , 12aalpha )]- 4 , 7 - bis ( di - 7a 4 - methylamino - 0 . 5 hrs . 588 ( m + h ) methylamino )- 1 , 4 , 4a , 5 , 5a , 6 , 11 , 12a - octa - 1 - butanolhydro - 3 , 10 , 12 , 12a - tetrahydroxy - 9 -[[[( 2 - hydroxyethyl ) methylamino ] acetyl ] amino - 1 , 11 - dioxo - 2 - naphthacenecarboxamide19 [ 4s -( 4alpha , 12aalpha )]- 4 , 7 - bis ( dimethyl - 7a 4 - amino - 1 - 0 . 5 hr . 602 ( m + h ) amino )- 1 , 4 , 4a , 5 , 5a , 6 , 11 , 12a - octahydro - butanol3 , 10 , 12 , 12a - tetrahydroxy - 9 -[[[( 4 -( hydroxy - butyl ) amino ] acetyl ] amino ]- 1 , 11 - dioxo - 2 - naphthacenecarboxamide20 [ 4s -( 4alpha , 12aalpha )]- 4 , 7 - bis ( di - 7a 2 , 2 , 2 - tri - 2 hr . 612 ( m + h ) methylamino )- 1 , 4 , 4a , 5 , 5a , 6 , 11 , 12a - octa - fluoromethyl - hydro - 3 , 10 , 12 , 12a - tetrahydroxy - 1 , 11 - aminedioxo - 9 -[[[ 2 , 2 , 2 - trifluoroethyl ) amino ]- acetyl ]- 2 - naphthacenecarboxamide21 [ 4s -( 4alpha , 12aalpha )]- 4 , 7 - bis ( dimethyl - 7a 2 - fluoro - 2 hr . 576 ( m + h ) amino )- 9 -[[[( 2 - fluoroethyl ) amino ] acetyl ]- ethylamineamino [- 1 , 4 , 4a , 5 , 5a , 6 , 11 , 12a - octahydro - 3 , 10 , 12 , 12a - tetrahydroxy - 1 , 11 - dioxo - 2 - naphthacenecarboxamide22 [ 4s -( 4alpha , 12aalpha )]- 4 , 7 - bis ( dimethyl - 7a 1 -( 2 - amino - 2 hr . 627 ( m + h ) amino )- 1 , 4 , 4a , 5 , 5a ; 6 , 11 , 12a - octahydro - ethyl ) pyrro - 3 , 10 , 12 , 12a - tetrahydroxy - 1 , 11 - dioxo - 9 - lidine [[[[ 2 -( 1 - piperidinyl ) ethyl ] amino ] acetyl ]- amino ]- 2 - naphthacenecarboxamide23 [ 4s -( 4alpha , 12aalpha )]- 4 , 7 - bis ( di - 7a n - methylpro - 2 hrs . 581 ( m + h ) methylamino )- 1 , 4 , 4a , 5 , 5a , 6 , 11 , 12a - octa - pargylaminehydro - 3 , 10 , 12 , 12a - tetrahydroxy - 9 -[[[ methyl - 2 - propynylamino ] acetyl ] amino ]- 1 , 11 - dioxo - 2 - naphthacenecarboxamide24 [ 4s -( 4alpha , 12aalpha )]- 4 , 7 - bis ( di - 7a 1 - amino - 2 hrs . 613 ( m + h ) methylamino )- 1 , 4 , 4a , 5 , 5a , 6 , 11 , 12a - octa - piperidinehydro - 3 , 10 , 12 , 12a - tetrahydroxy - 1 , 11 - dioxo - 9 -[[( 1 - piperidinylamino ) acetyl ]- amino ]- 2 - naphthacenecarboxamide__________________________________________________________________________ to 0 . 50 g of o - benzylhydroxylamine and 2 . 5 ml of 1 , 3 - dimethyl - 2 - imidazolidinone is added 0 . 80 g of sodium bicarbonate . the mixture is stirred at room temperature for 2 hours , filtered and the filtrate added to 0 . 10 g of product from 7a . the reaction solution is stirred at room temperature for 2 hours and then added to 100 ml of diethyl ether . the resulting precipitate is collected and dried to give 0 . 90 g of the desired product . ms ( fab ): m / z 636 ( m + h ).