申请人:Yoshitomi Pharmaceutical Industries, Ltd.
公开号:US04889857A1
公开(公告)日:1989-12-26
A quinolonecarboxylic acid compound of the formula: ##STR1## wherein R.sup.1 is an alkyl group, a cycloalkyl group, a haloalkyl group, an alkenyl group, mono- or di-alkylamino groups, a phenyl group or a phenyl group substituted by one to three substituents selected from the group consisting of a halogen atom, an alkyl group, an alkoxy group, a hydroxy group, a nitro group or an amino group, R.sup.2 is a hydrogen atom, an alkyl group, a cycloalkyl group, an acyl group or an alkoxycarbonyl group, R.sup.3 is a hydrogen atom, an alkyl group or an aralkyl group, or R.sup.2 and R.sup.3 together with the adjacent nitrogen atom form a heterocyclic ring, R.sup.4 is a hydrogen atom or an alkyl group, R.sup.5 is a hydrogen atom, an alkyl group, an aralkyl group or an ester residue which is readily hydrolyzable in vivo, X is a hydrogen atom, a halogen atom or an alkyl group, n is interger of 1 to 3, and a salt thereof, and pharmaceutical use thereof. The compounds exhibit antibacterial activites and are useful for the treatment of various infectious diseases.
一种喹诺酸类化合物的公式为:##STR1##其中,R.sup.1是烷基,环烷基,卤代烷基,烯基,单烷基或双烷基氨基,苯基或苯基上有一到三个取自卤素原子,烷基,烷氧基,羟基,硝基或氨基的取代基,R.sup.2是氢原子,烷基,环烷基,酰基或烷氧羰基,R.sup.3是氢原子,烷基或苯基甲基,或R.sup.2和R.sup.3与相邻的氮原子一起形成杂环,R.sup.4是氢原子或烷基,R.sup.5是氢原子,烷基,苯基甲基或易于在体内水解的酯基,X是氢原子,卤素原子或烷基,n是1到3的整数,以及其盐和药物用途。这些化合物表现出抗菌活性,可用于治疗各种传染病。