申请人:——
公开号:US20040230065A1
公开(公告)日:2004-11-18
There is described a process for the preparation of citalopram and of its pharmaceutically acceptable salts, which comprises treating a 1-[3-(dimethylamino)propyl]-1-(4-fluorophenyl)-1,3-dihydro-5 isobenzofurancarbaldoxime, O-substituted preferably with a diphenylmethyl or triphenylmethyl group, with formic-acetic anhydride. Furthermore, the total synthesis of citalopram, as free base or in form of its pharmaceutically acceptable salt, starting from 5-formylphthalide is described.
描述了一种制备西酞普兰及其药用可接受盐的方法,包括用甲酸-乙酸酐处理1-[3-(二甲氨基)丙基]-1-(4-氟苯基)-1,3-二氢-5-异苯并呋喃羰肟,O-取代物最好是二苯甲基或三苯甲基基团。此外,还描述了从5-甲酰基邻苯二甲酸酯开始,合成西酞普兰的全合成方法,作为自由碱基或其药用可接受盐的形式。