申请人:Bayer Aktiengesellschaft
公开号:US04086340A1
公开(公告)日:1978-04-25
Cephalosporins of the formula ##STR1## their pharmaceutically-acceptable, nontoxic salts, and hydrates thereof are produced, wherein A is hydrogen; unsubstituted or substituted alkyl; aryl; or R.sub.1 --X--, wherein X is --CO-- or --SO.sub.2 --, and R.sub.1 is hydrogen, unsubstituted or substituted alkyl; aryl; thienyl; furyl; amino; alkylamino; dialkylamino; pyrrolidyl; or piperidyl; Or when X is --CO--, R.sub.1 can also be alkoxy; B is phenyl, methylphenyl, chlorophenyl, hydroxyphenyl or the moiety ##STR2## E is hydrogen, hydroxyl or acetoxy; and C is a center of chirality. These compounds are particularly useful for their antimicrobial and, particularly, antibacterial effects.
根据该公式生产头孢菌素##STR1##及其药学上可接受的、无毒的盐和水合物,其中A为氢;未取代或取代的烷基;芳基;或R.sub.1 --X--,其中X为--CO--或--SO.sub.2--,R.sub.1为氢,未取代或取代的烷基;芳基;噻吩基;呋喃基;氨基;烷基氨基;二烷基氨基;吡咯基;或哌啶基;当X为--CO--时,R.sub.1也可以是烷氧基;B为苯基,甲基苯基,氯苯基,羟基苯基或基团##STR2## E为氢,羟基或乙酰氧基;C为手性中心。这些化合物特别适用于其抗微生物作用,特别是抗细菌作用。