申请人:Hoffmann-La Roche Inc.
公开号:US05811419A1
公开(公告)日:1998-09-22
Compounds of formula I ##STR1## wherein R.sup.1 is hydrogen or an acyl group derived from a carboxylic acid; R.sup.2 is hydrogen, hydroxy, lower alkyl, cycloalkyl, lower alkoxy, lower alkenyl, cycloalkenyl, lower alkynyl, aryl-lower alkyl, aryl, aryloxy, aryl-lower alkoxy or a heterocyclic ring; the lower alkyl, cycloalkyl, lower alkoxy, lower alkenyl, cycloalkenyl, lower alkynyl, aryl-lower alkyl, aryl, aryloxy, aryl-lower alkoxy and the heterocyclic ring being unsubstituted or substituted with at least one group selected from carboxy, amino, nitro, cyano, lower alkyl, lower alkoxy, hydroxy, halogen, --CONR.sup.21 R.sup.22, --N(R.sup.22)COOR.sup.23, R.sup.22 CO--, R.sup.22 OCO-- or R.sup.22 COO--, wherein R.sup.21 is hydrogen, lower alkyl, or cycloalkyl; R.sup.22 is hydrogen or lower alkyl; R.sup.23 is lower alkyl, lower alkenyl or a carboxylic acid protecting group; as well as readily hydrolyzable esters thereof, pharmaceutically acceptable salts of said compounds and hydrates of the compounds of formula I and of their esters and salts as provided for herein. The invention also relates to pharmaceutical compositions and methods of use of these compounds.
化合物I的公式为##STR1##其中R.sup.1是氢原子或来自羧酸的酰基; R.sup.2是氢原子、羟基、低碳基、环烷基、低烷氧基、低烯基、环烯基、低炔基、芳基-低烷基、芳基、芳氧基、芳基-低烷氧基或杂环环;所述低碳基、环烷基、低烷氧基、低烯基、环烯基、低炔基、芳基-低烷基、芳基、芳氧基、芳基-低烷氧基和杂环环可以未经取代或经过至少选择自羧基、氨基、硝基、氰基、低碳基、低烷氧基、羟基、卤素、--CONR.sup.21 R.sup.22、--N(R.sup.22)COOR.sup.23、R.sup.22 CO--、R.sup.22 OCO--或R.sup.22 COO--的一种基团的取代。其中R.sup.21是氢原子、低碳基或环烷基;R.sup.22是氢原子或低碳基;R.sup.23是低碳基、低烯基或羧酸保护基;以及它们的易水解酯、所述化合物的药学上可接受的盐和化合物I及其酯和盐的水合物。本发明还涉及这些化合物的药物组合物和使用方法。