UN PROCEDIMIENTO PARA LA PREPARACION DE ACIDO 6,A-METOXI-6,B-(2-(2-METILFENOXICARBONIL)-2-(TIEN-3-IL) ACETAMIDO) PENICILANICO

摘要

Preparation and use of 6,alpha-methoxy-6,beta-2-(2-methylphenoxycarbonyl)-2-(thien-3-yl) acetamido penicillanic acid of the formula …… or a pharmaceutically acceptable salt or in vivo hydrolysable ester thereof. …Intermediate of formula (X) …… and pharmaceutical composition comprising a penicillin of the first-mentioned formula, optionally with a clavulanic-acid derivative.