[EN] MODIFIED FISCHER INDOLE SYNTHESIS OF ELETRIPTAN<br/>[FR] PREPARATION D'ELETRIPTAN CONSISTANT EN UNE SYNTHESE MODIFIEE D'INDOLE PAR LA METHODE DE FISCHER
申请人:PFIZER LTD
公开号:WO2005103035A1
公开(公告)日:2005-11-03
The present invention relates to a new process for the preparation of eletriptan (I), or its enantiomer comprising a modified Fischer indole synthesis, namely the reaction of a compound of formula (II), wherein R1 is a suitable hydrazine protecting group, with a compound of formula (III) wherein R2 is an aldehyde group (-CHO) or the functional equivalent thereof.
本发明涉及一种用于制备依来曲坦(I)或其对映体的新工艺,包括改良的费歇尔吲哚合成,即化合物的反应式(II),其中R1是适当的肼保护基,与化合物的反应式(III)其中R2是醛基(-CHO)或其等效官能团。