摘要:
Diselosed are 6-[1-hydroxyethyl)-2-SR 5 -1-methyl-1-carbadethiapen-2-em-3-carboxylic acid esters (I) which are oralfy active antibiotics: wherein: R is a pharmaceutically acceptable ester moiety consistent with oral delivery; and R' is substituted or unsubstituted: alkyl, alkenyl, alkynyl, or cyclic alkyl, alkenyl, alkynyl, having 1-6 carbon atoms, aryl such as phenyl or heteroaryl such as pyridyl; wherein the substituent or substituents are selected from: phenyl, pyridyl, cyano, fluoro, chloro, hydroxy, alkylthio such as methylthio, arylthio such as phenylthio, methoxy, phenoxy, alkoxycarbonyl such as methoxycarbonyl, acetoxyl, N-methylcarbamoyl, N-methylcarbamoyloxy and N-acylamino. Also disclosed are processes for the preparation of such compounds and pharmaceutical compositions comprising such compounds.
摘要:
Disclosed are 6- and 4-substituted-1-azabicyclo-[3.2.0]heptan-3.7-dione-2-carboxylic acid esters and salts (I) which are useful in the preparation of 6-, 1- and 2- substituted carbapenem antibiotics. wherein R 5 is a pharmaceutically acceptable ester moiety or a removable protecting group or an alkali or alkaline earth metal cation such as sodium or potassium and wherein R 1 , R 2 , R 3 and R 4 are, inter alia, independently selected from the group consisting of hydrogen, alkyl, aryl and aralkyl.
摘要:
Disclosed are 1-, 6- and 2-substituted-1-carba -2-penem-3-carboxylic acids of the following structure: wherein R 1 , R 2 , R 3 and R 4 are, inter alia, independently selected from the group consisting of hydrogen, alkyl, aryl, and aralkyl. Such compounds as well as their pharmaceutically acceptable salt, ester and amide derivatives are useful as antibiotics. Also disclosed are processes for the preparation of such compounds and pharmaceutical compositions comprising such compounds.