发明名称 Method for the preparation of citalopram by reduction and its intermediates
摘要 A method for the preparation of citalopram comprises reduction of a compound of formula (III) wherein X is a cyano group, or a group which can be converted to a cyano group, and where X is not a cyano group followed by the conversion of X to a cyano group, and isolation of citalopram in the form of the base or as a pharmaceutically acceptable acid addition salt thereof. Also described is the compound of formula (V) wherein X is a cyano group or a group which can be converted to a cyano group or an acid addition salt thereof and an antidepressant pharmaceutical composition comprising citalopram manufactured by the method described above.
申请公布号 NZ521202(A) 申请公布日期 2004.11.26
申请号 NZ20010521202 申请日期 2001.03.07
申请人 H 发明人 PETERSEN, HANS
分类号 A61K31/343;A61P25/24;C07D307/87;(IPC1-7):C07D307/87 主分类号 A61K31/343
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