Direct cyclization of ortho-(1H-pyrrol-1-yl)aryl and heteroaryl carboxylic acids into fused pyrrolizinones
摘要:
A series of fused heterocyclic compounds based on a pyrrolizinone structure have been prepared from ortho-(1H-pyrrol-1-yl)aryl and heteroaryl carboxylic acids by intramolecular Friedel-Crafts acylation promoted by bis(trichloromethyl) carbonate, in generally good yield without using Lewis acid catalysts. (C) 2010 Elsevier Ltd. All rights reserved.
The design and synthesis of a new type of 5-HT3 ligand with subnanomolar affinity are described. The O-dialkylaminoethyloximinothienopyrrolizine structure was deduced from molecular modeling studies by replacement of an amidine moiety by an oximino one.
Nouveaux éthers d'oximes tricycliques, leur procédé de préparation et les compositions pharmaceutiques qui les contiennent
申请人:ADIR ET COMPAGNIE
公开号:EP0718299A1
公开(公告)日:1996-06-26
La présente invention concerne les composés de formule ( I ) :
dans laquelle A, x, y, R1, R2 et R3 sont tels que définis dans la description.
Médicaments.