[EN] PREPARATION OF 3-AMINOALKYL-SUBSTITUTED INDOLE DERIVATIVES FROM PHENYLHYDRAZINES AND AMINOKETONES [FR] PREPARATION DE DERIVES D'INDOLE A SUBSTITUTION 3-AMINOALKYLE A PARTIR DE PHENYLHYDRAZINES ET D'AMINOCETONES
[EN] PREPARATION OF 3-AMINOALKYL-SUBSTITUTED INDOLE DERIVATIVES FROM PHENYLHYDRAZINES AND AMINOKETONES<br/>[FR] PREPARATION DE DERIVES D'INDOLE A SUBSTITUTION 3-AMINOALKYLE A PARTIR DE PHENYLHYDRAZINES ET D'AMINOCETONES
申请人:SUVEN LIFE SCIENCES LTD
公开号:WO2004041781A1
公开(公告)日:2004-05-21
The present invention relates to a process for the preparation of indole derivatives, particularly those, which are useful as pharmaceutical intermediates. The process involves formation of hydrazone derivative between a phenyl hydrazine and a ketone amine, followed by cyclisation to give desired 2,3-substituted indole derivative in the presence of acid catalyst.