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公开(公告)号:US20110306792A1
公开(公告)日:2011-12-15
申请号:US13138061
申请日:2009-08-18
申请人: Gang Wang , Jingzhong Zhang , Xungui He , Yuan Wang
发明人: Gang Wang , Jingzhong Zhang , Xungui He , Yuan Wang
IPC分类号: C07C213/10
CPC分类号: C07C231/10 , C07B2200/07 , C07C213/00 , C07C215/54 , C07C235/34
摘要: The present invention relates to a process for preparing tolterodine and the L-tartrate thereof. The preparation consists of the following steps: A) ammonolysis reaction between diisopropylamine and compound 2 (3,4-dihydro-6-methyl-4-phenyl-2H-benzopyran-2-one) activated by an activator to afford the amide 3; B) reduction of the amide by a reductant to give compound 1, i.e., racemic tolterodine free base; C) Resolution of the tolterodine free base to afford tolterodine L-tartrate. The present route is very short and suitable for industrial production.
摘要翻译: 本发明涉及一种制备托特罗定及其L-酒石酸盐的方法。 该制备方法包括以下步骤:A)由活化剂活化的二异丙胺与化合物2(3,4-二氢-6-甲基-4-苯基-2H-苯并吡喃-2-酮)之间的氨解反应得到酰胺3; B)通过还原剂还原酰胺以得到化合物1,即外消旋的托特罗定游离碱; C)分解托特罗定游离碱以提供托特罗定L-酒石酸盐。 目前的路线很短,适合工业生产。