[EN] PROCESS OF PREPARING TOLTERODINE AND ANALOGUES THERE OF AS WELL AS INTERMEDIATES PREPARED IN THE PROCESS<br/>[FR] PROCEDE PERMETTANT DE PREPARER DE LA TOLTERODINE ET SES ANALOGUES, ET PRODUITS INTERMEDIAIRES PREPARES DANS CE PROCEDE
申请人:PHARMACIA AB
公开号:WO2001049649A1
公开(公告)日:2001-07-12
The invention relates to a process for the enantioselective preparation of tolterodine and analogues and salts thereof comprising the steps of: a) enantioselectively reducing the carbonyl function in a compound of formula (II), wherein R1, R2, and R3 independently of each other are hydrogen, methyl, methoxy, hydroxy, hydroxymethyl, carbamoyl, sulphamoyl or halogen, to form an enantiomerically enriched compound of formula (IIIa) or (IIIb); b) subjecting the compound of formula (IIIa) or (IIIb) to a sigmatropic rearrangement to form a corresponding enantiomerically enriched compound of formula (IVa) or (IVb); c) subjecting the compound of formula (IVa) or (IVb) to a Baeyer-Villiger oxidation to form a corresponding enantiomerically enriched compound of formula (Va) or (Vb); d) converting the compound of formula (Va) or (Vb) to form the corresponding enantiomerically enriched compound of tolterodine or analogue thereof; and e) optionally converting a compound obtained in base form to a salt thereof, or converting a salt form to the free base. Formulas (IIIa), (IIIb), (IVa), (IVb), (Va) and (Vb) are specified in the application. The invention also relates to novel starting materials and intermediates used in the process.
该发明涉及一种手性选择性制备托吡酯及其类似物和盐的过程,包括以下步骤:a)手性选择性还原式II化合物中的羰基功能,其中R1、R2和R3独立地为氢、甲基、甲氧基、羟基、羟甲基、氨基甲酰基、磺酰基或卤素,以形成手性富集的IIIa或IIIb式化合物;b)将IIIa或IIIb式化合物进行sigma迁移重排,以形成相应的手性富集的IVa或IVb式化合物;c)将IVa或IVb式化合物进行Baeyer-Villiger氧化,以形成相应的手性富集的Va或Vb式化合物;d)将Va或Vb式化合物转化为相应的手性富集的托吡酯或其类似物;e)可选地将得到的碱性化合物转化为其盐形式,或将盐形式转化为自由碱形式。式IIIa、IIIb、IVa、IVb、Va和Vb在申请中有具体说明。该发明还涉及在该过程中使用的新起始材料和中间体。