申请人:SANKYO COMPANY LIMITED
公开号:EP0165384A1
公开(公告)日:1985-12-27
Compounds of the formula:
wherein:
R1 represents a hydrogen atom, a C2-3 alkyl group, a 1-hydroxyethyl group or a 1-hydroxy-1-methylethyl group;
R2 represents a group of formula:
in which, X represents a hydrogen atom, an alkyl group, a cyanoalkyl group, a haloalkyl group, an alkoxyalkyl group, an alkylthioalkyl group, an alkoxycarbonylalkyl group, an alkoxy group, an alkylthio group, an alkylsulphinyl group, an alkylsulphonyl group, a hydroxy group or a halogen atom, where each alkyl or alkoxy has 1-4 carbon atoms;
Y represents a hydrogen atom, a C1-4 alkyl group, a C1-4 alkyl group substituted by a hydroxy, amino, carboxy or C1-4 alkoxy group, a C1-5 aliphatic acyl group, a C1-6 aliphatic acyl group substituted by a hydroxy, amino, carboxy or C1-4 alkoxy group, a group of formula -C(R5)=N-R6 (R5 and R6 each represents a hydrogen or C1-4 alkyl).
represents a 2- or 3-azetidinyl, a 2- or 3-pyrrolidinyl, a 2-,3- or 4-piperidyl or a 3,4,5,6-tetrahydropyrimidin-5-yl.
R3 represents a carboxy group or a protected carboxy group, and pharmaceutically acceptable salts thereof, provided that when the group
is a 4-piperidyl group then Y is not a C1-4 alkyl group and when
is a 3-pyrrolidinyl group Y is not a group then Y is not a group -C(R5)=N-R6, are useful antibiotics.
式中的化合物:
式中
R1 代表氢原子、C2-3 烷基、1-羟基乙基或 1-羟基-1-甲基乙基;
R2 代表式中的一个基团:
其中,X 代表氢原子、烷基、氰基烷基、卤代烷基、烷氧基烷基、烷硫基烷基、烷氧羰基烷基、烷氧基、烷硫基、烷基亚磺酰基、烷基磺酰基、羟基或卤素原子,其中每个烷基或烷氧基有 1-4 个碳原子;
Y 代表氢原子、C1-4 烷基、被羟基、氨基、羧基或 C1-4 烷氧基取代的 C1-4 烷基、C1-5 脂肪酰基、被羟基、氨基、羧基或 C1-4 烷氧基取代的 C1-6 脂肪酰基、式 -C(R5)=N-R6 的基团(R5 和 R6 各代表氢或 C1-4 烷基)。
代表 2-或 3-氮杂环丁基、2-或 3-吡咯烷基、2-、3-或 4-哌啶基或 3,4,5,6-四氢嘧啶-5-基。
R3 代表羧基或受保护的羧基及其药学上可接受的盐,条件是当该基团
是 4-哌啶基时,则 Y 不是 C1-4 烷基,当
是 3-吡咯烷基时 Y 不是一个基团,则 Y 不是一个基团-C(R5)=N-R6,这些都是有用的抗生素。