申请人:BEECHAM GROUP PLC
公开号:EP0209237A2
公开(公告)日:1987-01-21
β-Lactam antibiotics are disclosed having the partial structure:
where R1 is:
in which R2, R3 and R4 are the same or different and each is hydrogen; halogen; optionally substituted C1-6 alkyl; optionally substituted C3-7 cycloalkyl; optionally substituted C2-6 alkenyl; optionally substituted C2-6 alkynyl; amido; cyano; carboxy; formyl; C1-6 alkoxycarbonyl; mono- or
di-(C1-6)alkylamido; C1-6 alkylcarbonyl; an aryl group; a heterocyclyl group; or R3 and R4 are joined together to form the residue of a carbocyclic ring having a total of from 3 to 7 carbon atoms in the ring; or R3 and R4 are joined together to form the residue of a heterocyclic ring in which R3 and R4 together may be represented by the formula -(CH2)mX(CN2)n in which X is oxygen, sulphur or a group NR5 wherein R5 is hydrogen, acyl, an amino-protecting group, or C1-6 alkyl, m is 1 to 3 and n is 1 to 3; and also the use thereof.
Processes for the preparation of the compounds are disclosed together with intermediates for use therein.
β-内酰胺类抗生素具有以下部分结构:
其中R1为
其中R2、R3和R4相同或不同,且各自为氢;卤素;任选取代的C1-6烷基;任选取代的C3-7环烷基;任选取代的C2-6烯基;任选取代的C2-6炔基;氨基;氰基;羧基;甲酰基;C1-6烷氧基羰基;单-或
二-(C1-6)烷基氨基;C1-6 烷基羰基;芳基;杂环基;或 R3 和 R4 连接在一起形成碳环的残基,环中共有 3 至 7 个碳原子;或 R3 和 R4 连接在一起形成杂环的残基,其中 R3 和 R4 可由式-(CH2)mX(CN2)n 表示,式中 X 是氧、硫或基团 NR5,其中 R5 是氢、酰基、氨基保护基团或 C1-6 烷基,m 是 1 至 3,n 是 1 至 3;以及其用途。
公开了这些化合物的制备工艺及其使用的中间体。