[EN] MANUFACTURING PROCESS FOR TIOTROPIUM BROMIDE<br/>[FR] PROCÉDÉ DE FABRICATION DE BROMURE DE TIOTROPIUM
申请人:DRUG PROCESS LICENSING ASS LLC
公开号:WO2013050929A1
公开(公告)日:2013-04-11
The present invention relates to a novel manufacturing process of pharmaceutically active compound of Formula (I) used as a long-acting anticholinergic bronchodilator. Starting from oxalic acid derivative of Formula (III) the invention describes preparation of a novel cyclic anhydride of Formula (II) which is very efficient precursor in the synthesis of Tiotropium bromide (compound of Formula (I)).
The present invention relates to a novel manufacturing process of pharmaceutically active compound of formula I used as a long-acting anticholinergic bronchodilator. Starting from oxalic acid derivative of formula III the invention describes preparation of a novel cyclic anhydride of formula II which is very efficient precursor in the synthesis of Tiotropium bromide (compound of formula I).