申请人:Korea Institute of Science and Technology
公开号:US05571909A1
公开(公告)日:1996-11-05
Quaternary ammoniocephalosporins of formula(I) wherein Q.dbd.CH or N, P.dbd.hydroxylated amine or hydroxylated heterocyclylamines including N-methyl-bis(2-hydroxyethyl)amine, rac-3,4-trans-dihydroxy-1-methylpyrrolidine, (3S, 4S)-3,4-dihydroxy-1-methylpyrrolidine, (3R,4R)-3,4-dihydroxy-1-methylpyrrolidine, meso-3,4-dihydorcy-1-methylpyrrolidine, (2S, 4R)-4-hydroxy-1-methyl-2-pyrrolidinemethanol 3,4-cis-dihydroxy-1-methylpiperidine, 3,4-trans-dihydroxy-1-methylpiperidine, or tropine, and preparation methods are disclosed. ##STR1##
公开了公式(I)的季铵头孢菌素,其中Q.dbd.CH或N,P.dbd.羟基化胺或羟基化杂环胺,包括N-甲基-双(2-羟乙基)胺,rac-3,4-反式-二羟基-1-甲基吡咯烷,(3S,4S)-3,4-二羟基-1-甲基吡咯烷,(3R,4R)-3,4-二羟基-1-甲基吡咯烷,meso-3,4-二羟基-1-甲基吡咯烷,(2S,4R)-4-羟基-1-甲基-2-吡咯甲醇3,4-顺式-二羟基-1-甲基哌啶,3,4-反式-二羟基-1-甲基哌啶,或曲松碱,以及制备方法。