申请人:F. HOFFMANN-LA ROCHE AG
公开号:EP0550775A1
公开(公告)日:1993-07-14
Cephalosporin derivatives of the general formula
in which R³ is a group of the formula
R⁶⁰ and R⁶⁵ are hydrogen or lower alkyl, R¹⁵-R¹⁹ are each independently hydrogen, halogen or hydroxy, n is zero or 1, R⁴ and R⁵ are each hydrogen, halogen, lower alkyl, lower alkoxy or amino, R⁷ is hydrogen or lower alkyl and R⁸ is lower alkyl, halo- lower alkyl, C₃-C₇ cycloalkyl or mono-, di- or trihalophenyl, and Z is N or C-R⁹, where R⁹ is hydrogen, halogen, lower alkyl or lower alkoxy; and, when R⁴ is fluoro, R⁵ and R⁷ are hydrogen. R⁸ is cyclopropyl and Z is C-H, R³ can also be one of the groups
in which R⁶¹ and R⁶⁶ are hydrogen or methyl, R¹⁵-R¹⁹ are as above and R⁹⁰ is hydrogen, hydroxy, carboxy, amino or [[4-(lower alkyl)-2,3-dioxo-1-piperazinyl]carbonyl]amino;
pharmaceutically acceptable acid or base addition salts thereof, hydrates of compounds of formula I and hydrates of such salts.
The products have antibacterial activity.
头孢菌素衍生物的一般公式如下,其中R³是一个具有公式R⁶⁰的基团,R⁶⁵是氢或较低烷基,R¹⁵-R¹⁹分别独立地是氢、卤素或羟基,n为零或1,R⁴和R⁵分别是氢、卤素、较低烷基、较低烷氧基或氨基,R⁷是氢或较低烷基,R⁸是较低烷基、卤代较低烷基、C₃-C₇环烷基或单、二或三卤苯基,Z是N或C-R⁹,其中R⁹是氢、卤素、较低烷基或较低烷氧基;当R⁴为氟时,R⁵和R⁷为氢。R⁸为环丙基,Z为C-H时,R³也可以是以下基团之一,其中R⁶¹和R⁶⁶为氢或甲基,R¹⁵-R¹⁹如上所述,R⁹⁰为氢、羟基、羧基、氨基或[[4-(较低烷基)-2,3-二氧代-1-哌嗪基]羰基]氨基;其药用上可接受的酸或碱盐,以及公式I化合物的水合物和此类盐的水合物。这些产品具有抗菌活性。