发明申请
US20090099364A1 Process for preparation of 1-(2s,3s)-2-benzhydryl-n-(5- tert-butyl-2-methoxybenzyl)quinuclidin-3-amine 审中-公开
1-(2s,3s)-2-二苯甲基 - 正 - (5-叔丁基-2-甲氧基苄基)奎宁环-3-胺的制备方法

Process for preparation of 1-(2s,3s)-2-benzhydryl-n-(5- tert-butyl-2-methoxybenzyl)quinuclidin-3-amine
摘要:
This invention relates to an improved process for the preparation of (2S,3S)-2-benzhydryl-N-(5-tent-butyl-2-methoxybenzyl)quinuclidin-3-amine, (hereinafter “compound of Formula I”) and its pharmaceutically acceptable salts. In particular, the invention is directed to an improved synthesis of the monohydrate citrate salt of the compound of Formula (Ia).
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