申请人:E. R. Squibb & Sons, Inc.
公开号:US04574153A1
公开(公告)日:1986-03-04
Antibacterial activity is exhibited by compounds having the formula ##STR1## and pharmaceutically acceptable salts thereof, wherein, R.sub.1 is an acyl group derived from a carboxylic acid; R.sub.2 is hydrogen, methoxy, or formamido ##STR2## and one of R.sub.3 and R'.sub.3 is hydrogen and the other is ##STR3## and R.sub.4 is hydrogen alkyl, substituted alkyl, phenyl, substituted phenyl, phenylalkyl or (substituted phenyl)alkyl.
具有以下结构式##STR1##及其药学上可接受的盐的化合物表现出抗菌活性,其中,R.sub.1是从羧酸派生的酰基;R.sub.2是氢、甲氧基或甲酰胺基##STR2##,并且R.sub.3和R'.sub.3中的一个是氢,另一个是##STR3##,R.sub.4是氢基烷基,取代烷基,苯基,取代苯基,苯基烷基或(取代苯基)烷基。