Facile Synthesis of Indolines by a Tandem Nitro-reduction Aza Michael Addition Reaction
摘要:
A diverse array of substrates are conveniently prepared by coupling diazonium salts to ethyl vinyl ether and subjecting the resultant aldehyde intermediate to a Wittig reaction to provide alpha,beta-unsaturated esters with only one purification step. The cyclisation of 4-aryl-but-2-enoates is carried out in the presence of stoichiometric amounts of SnCl2 center dot 2H(2)O and thus this one-pot strategy also permitted the expeditious synthesis of indolines in good yield.
Certain 2,3,4,5-tetrahydro-1H-[1,4]diazepino[1,7-a]indoles are 5-HT ligands and are useful for treating diseases wherein modulation of 5-HT activity is desired.
[EN] NOVEL 2,3,4,5-TETRAHYDRO-1H-[1,4]DIAZEPINO[1,7a]INDOLE COMPOUNDS<br/>[FR] NOUVEAUX COMPOSES A BASE DE 2,3,4,5-TETRAHYDRO-1H-[1,4]DIAZEPINO[1,7A]INDOLE
申请人:UPJOHN CO
公开号:WO2001072752A2
公开(公告)日:2001-10-04
Compounds of formula (I). These compounds are 5-HT ligands and are useful for treating diseases wherein modulation of 5-HT activity is desired.