申请人:Bayer Aktiengesellschaft
公开号:US03974288A1
公开(公告)日:1976-08-10
A compound of the formula: ##SPC1## Or a pharmaceutically acceptable nontoxic salt thereof wherein R.sub.1 is hydrogen, straight or branched chain alkyl of 1 to 5 carbon atoms, monoaralkyl of up to 8 carbon atoms, monoaryl, substituted monoaryl, or thienyl; A is moiety of the formula: ##EQU1## wherein R.sub.2, R.sub.3, R.sub.4, R.sub.5, R.sub.6 and R.sub.7 are the same or different and each is hydrogen, straight or branched chain alkyl of 1 to 5 carbon atoms, monoaralkyl of up to 8 carbon atoms, monoaryl, substituted monoaryl, or thienyl; B is a moiety of the formula: ##SPC2## Wherein R.sub.8, r.sub.9 and R.sub.10 are the same or different and each is hydrogen, fluorine, chlorine, bromine. iodine, lower alkyl, lower alkoxy, lower alkylthio, lower alkylsulphonyl, sulphamyl, nitro, cyano, di(lower alkyl)amino, lower alkanoylamino, lower alkanoyloxy, lower alkylsulphonylamino, trifluoromethyl or hydroxy; E is oxygen or sulphur; and C is a carbon atom constituting a center of chirality, are useful for their antibacterial activity.
公式为:##SPC1## 或其药学上可接受的无毒盐,其中R.sub.1为氢、1至5个碳原子的直链或支链烷基、最多8个碳原子的单芳基、单芳基、取代的单芳基或噻吩基;A为公式的部分:##EQU1## 其中R.sub.2、R.sub.3、R.sub.4、R.sub.5、R.sub.6和R.sub.7相同或不同,且每个为氢、1至5个碳原子的直链或支链烷基、最多8个碳原子的单芳基、单芳基、取代的单芳基或噻吩基;B为公式的部分:##SPC2## 其中R.sub.8、r.sub.9和R.sub.10相同或不同,每个为氢、氟、氯、溴、碘、低烷基、低烷氧基、低烷基硫基、低烷基磺酰基、磺胺基、硝基、氰基、二(低烷基)氨基、低烷酰胺基、低烷酰氧基、低烷基磺酰胺基、三氟甲基或羟基;E为氧或硫;C为构成手性中心的碳原子,对其抗菌活性有用。