tarocin tarocin tarocin a and tarocin b are two structurally unrelated compounds that inhibit the taro enzyme involved in teichoic acid biosynthesis in bacteria. tarocin a names iupac name (4s,5r)-5--4-methyl-3-(2-naphthalen-1-ylacetyl)-1,3-oxazolidin-2-one identifiers chebi chebi:131612 chembl chembl4066320 pubchem cid 118797938 inchi inchi=1s/c24h17f6no3/c1-13-21(16-9-17(23(25,26)27)12-18(10-16)24(28,29)30)34-22(33)31(13)20(32)11-15-7-4-6-14-5-2-3-8-19(14)15/h2-10,12-13,21h,11h2,1h3/t13-,21-/m0/s1key: gbvcjldlmgpdcl-zsekctlfsa-n smiles cc1c(oc(=o)n1c(=o)cc2=cc=cc3=cc=cc=c32)c4=cc(=cc(=c4)c(f)(f)f)c(f)(f)f properties chemical formula c24h17f6no3 molar mass 481.394 g·mol−1 except where otherwise noted, data are given for materials in their standard state (at 25 °c , 100 kpa). infobox references tarocin b names iupac name 3-(2-cyclohexylbenzimidazol-1-yl)-n-heptanyl]propanamide identifiers chebi chebi:131613 chembl chembl4570512 pubchem cid 118797939 inchi inchi=1s/c26h37n3o/c1-25(2)19-13-15-26(25,3)22(17-19)28-23(30)14-16-29-21-12-8-7-11-20(21)27-24(29)18-9-5-4-6-10-18/h7-8,11-12,18-19,22h,4-6,9-10,13-17h2,1-3h3,(h,28,30)/t19-,22-,26+/m1/s1key: slshaqauynmjct-snobzrmmsa-n smiles cc1(c2ccc1(c(c2)nc(=o)ccn3c4=cc=cc=c4n=c3c5ccccc5)c)c properties chemical formula c26h37n3o molar mass 407.602 g·mol−1 except where otherwise noted, data are given for materials in their standard state (at 25 °c , 100 kpa). infobox references using either of them with β-lactam antibiotics seems to be effective in mice against some β-lactam-resistant bacteria. because the tarocins lack activity when used alone it may simplify the clinical trials for approval for medical use.