josamycin josamycin josamycin is a macrolide antibiotic. it was isolated by hamao umezawa and his colleagues from strains of streptomyces narbonensis var. josamyceticus var. nova in 1964. josamycinclinical dataahfs/drugs.cominternational drug namesatc codej01fa07 (who) identifiers iupac name (2s,3s,4r,6s)-6--4-(dimethylamino)-5-hydro xy-2-methyltetrahydro-2h-pyran-3-yl]oxy}-4-hydroxy-2,4-dimethyltetrahydro-2h-pyran-3-yl 3-methylbutanoate cas number16846-24-5 ypubchem cid5282165drugbankdb01321 ychemspider4445361 yuniihv13hfs217keggd01235 ychebichebi:31739 ychemblchembl224436 ycomptox dashboard (epa)dtxsid8023183 echa infocard100.037.140 chemical and physical dataformulac42h69no15molar mass828.006 g·mol−13d model (jsmol)interactive image smiles c1c/c=c/c=c/((c((((cc(=o)o1)oc(=o)c)oc)o2((((o2)c)o3c(((o3)c)oc(=o)cc(c)c)(c)o)n(c)c)o)cc=o)c)o inchi inchi=1s/c42h69no15/c1-23(2)19-32(47)56-40-27(6)53-34(22-42(40,8)50)57-37-26(5)54-41(36(49)35(37)43(9)10)58-38-29(17-18-44)20-24(3)30(46)16-14-12-13-15-25(4)52-33(48)21-31(39(38)51-11)55-28(7)45/h12-14,16,18,23-27,29-31,34-41,46,49-50h,15,17,19-22h2,1-11h3/b13-12+,16-14+/t24-,25-,26-,27+,29+,30+,31-,34+,35-,36-,37-,38+,39+,40+,41+,42-/m1/s1 ykey:xjsflojwulljqs-ngvxbbessa-n y ny (what is this?) (verify) it is currently sold in various countries.brand examples are: europe: josalid, josacine, iosalide, josamina russia: wilprafen (вильпрафен) japan: josamy adverse effects there has been a case report of edema of the feet.