[EN] A PROCESS FOR PREPARATION OF MEROPENEM<br/>[FR] PROCÉDÉ DE PRÉPARATION DE MEROPENEM
申请人:SEQUENT ANTI BIOTICS PRIVATE LTD
公开号:WO2012160576A2
公开(公告)日:2012-11-29
The present invention relates to a novel, cost-effective process for the preparation of Sterile Meropenem Trihydrate, which is prepared by a) condensation of l-Azabicyclo[3.2.0]hepta-2-ene-2-carboxylic acid, 3- [(diphenoxyphosphinyl)oxy]-6-(l-hydroxyethyl)-4-methyl-7-oxo-(4-nitrobenzyl) methyl ester,[4R-[4a,5b,6b(R*)]] with (2S,4S)-2-(Dimethylaminqcarbonyl)-4- mercapto-l -(p-nitrobenzyloxycarbonyl)-l -pyrrolidine to obtain diprotected Meropenem; b) deprotection and hydrogenation of diprotected Meropenem to obtain non-sterile Meropenem Trihydrate; c) conversion of NS Meropenem Trihydrate into Sterile Meropenem Trihydrate by using water, methanolic ammonia solution and purging carbon dioxide gas.