申请人:Uclaf; Roussel
公开号:US04908359A1
公开(公告)日:1990-03-13
1-dethia-2-thia-cephalosporanic acids of the formula ##STR1## wherein R is selected from the group consisting of ##STR2## R.sub.b --NH--and ##STR3## R.sub.a is an organic radical R.sub.i and R.sub.j are individually selected from the group consisting of hydrogen, aliphatic, aromatic and heterocycle or taken together with the nitrogen atom form an optionally substituted heterocycle, R.sub.b is optionally substituted carbocyclic or heterocyclic aryl, R.sub.1B is --[CH.dbd.CH].sub.n1 --CH.sub.2 --S--R.sub.m, n.sub.1 is 0, 1 or 2, Rm is an unsaturated radical including a positively charged and doubly bonded nitrogen atom and bonded to the sulfur atom through a carbon atom, R.sub.4 is hydrogen or methoxy, n.sub.2 is 0, 1 or 2 and A is selected from the group consisting of hydrogen, alkali metal ion, or alkaline earth metal ion, magnesium ion, ammonium ion, an organic amine base and an ester group or --COOA is --COO.sup.- and their non-toxic, pharmaceutically acceptable acid addition salts, having antibiotic activity.
1-脱氧-2-噻吩-头孢霉酸,其化学公式为##STR1##,其中R选自##STR2## R.sub.b --NH--和##STR3##的组。R.sub.a是一个有机基团,R.sub.i和R.sub.j分别选自氢、脂肪族、芳香族和杂环,或者与氮原子一起形成一个可选取代的杂环。R.sub.b是一个可选取代的碳环或杂环芳基。R.sub.1B是--[CH.dbd.CH].sub.n1 --CH.sub.2 --S--R.sub.m,n.sub.1是0、1或2。Rm是一个不饱和基团,包括一个带正电荷的双键氮原子,并通过一个碳原子与硫原子连接。R.sub.4是氢或甲氧基,n.sub.2是0、1或2。A选自氢、碱金属离子、碱土金属离子、镁离子、铵离子、有机胺碱和酯基或--COOA的组,--COOA是--COO.sup.-,以及它们的非毒性、药理可接受的酸加成盐,具有抗生素活性。