申请人:SANKEI PHARMACEUTICAL COMPANY LIMITED
公开号:EP0286145A2
公开(公告)日:1988-10-12
Acyl derivatives of the general formula
in which A signifies a group of the general formulae
-NHCO-, -NHCONHCO-, -NHCOCH=CH-,
wherein R⁶ represents hydrogen or lower alkyl; R¹ and R² in each case signify hydrogen or a protecting group, X signifies hydrogen, halogen, lower alkoxy. nitro or an additional group -OR², n signifies the number 1 or 2, R⁴ and R⁵ both signify hydrogen or together signify an additional bond and Z signifies a direct bond or carbonyl (where R⁴ and R⁵ both represent hydrogen) or a group of the formula -O-B- (where R⁴ and R⁵ together represent an additional bond) in which B signifies straight-chain, branched or cyclic lower alkylene; and wherein further R³ signifies a substituted bicyclic group of the general formulae
in which R⁷ and R⁸ each individually represent hydrogen, lower alkyl or trifluoromethyl or (in formulae (a), (b), (e) and (f)) together represent alkylene with 3 or 4 carbon atoms and Rʹ, Rʺ and R‴ each individually represent hydrogen, lower alkyl or lower cycloalkyl; whereby compounds of formula I in which R⁴ and R⁵ together represent an additional bond are present in the syn-isomeric form or as a mixture with the anti-isomeric form in which the syn-isomeric form predominates,
as well as readily hydrolyzable esters and salts of these compounds and hydrates of the compounds of formula I or of their esters and salts.
The compounds have antibiotic activity.
通式如下的酰基衍生物
其中 A 表示通式中的一个基团
-nhco-、-nhconhco-、-nhcoch=ch-、
其中 R⁶ 代表氢或低级烷基;R¹ 和 R² 在每种情况下代表氢或保护基团;X 代表氢、卤素、低级烷氧基、硝基或附加基团-OR.n 表示数字 1 或 2,R⁴ 和 R⁵ 均表示氢或共同表示一个附加键,Z 表示直接键或羰基(其中 R⁴ 和 R⁵ 均表示氢)或式 -O-B- 的基团(其中 R⁴ 和 R⁵ 共同表示一个附加键),其中 B 表示直链、支链或环状低级亚烷基;其中 R³ 表示通式中的取代双环基团
其中 R⁷ 和 R⁸ 各自单独代表氢、低级烷基或三氟甲基或(在式 (a)、(b)、(e) 和 (f) 中)共同代表具有 3 或 4 个碳原子的亚烷基,而 Rʹ、Rʺ 和 R‴ 各自单独代表氢、低级烷基或低级环烷基;其中 R⁴ 和 R⁵ 共同代表一个附加键的式 I 化合物以同分异构体形式或与反异构体形式的混合物形式存在,其中同分异构体形式占主导地位、
以及这些化合物的易水解酯和盐,以及式 I 化合物或其酯和盐的水合物。
这些化合物具有抗生素活性。