Synthesis and anticonvulsant properties of 2,3,3a,4-tetrahydro-1H-pyrrolo[1,2-a]benzimidazol-1-one derivatives
摘要:
A number of novel 1H-pyrrolo[1,2-a]benzimidazol-1-one derivatives were prepared and their anticonvulsant properties evaluated. The new synthesized compounds proved to possess anticonvulsant effects depending on the nature of substituents at C-6, C-2, and C-3a positions of the polycyclic system. In particular, the 6-chloro-3a-(p-tolyl)-2,3,3a,4-tetrahydro-1H-pyrrolo[1,2a]benzimidazol-l-one derivative (22) displayed potency fivefold higher than unsubstituted compound (13). (C) 2001 Elsevier Science S.A. All rights reserved.
Reaction of 4-oxocarboxylic acids and 5-substituted 3H-furan-2-ones with 1,2-binucleophiles of aromatic and alicyclic series
作者:V. S. Grinev、O. A. Amal’chieva、A. Yu. Egorova、E. V. Lyubun’
DOI:10.1134/s1070428010090198
日期:2010.9
Based on reactions of 5-substituted 3H-furan-2-ones or 4-oxocarboxylic acids with 1,2-binucleophiles of aromatic and aliphatic series methods were developed for the synthesis of tricyclic structures containing a pyrrolidine fragment fused with imidazolidine or oxazolidine ring. The pathways of the reactions are considered. It was demonstrated that the nature of the substrate did not affect the reaction direction, but changed the scheme of the interaction. The structures of compounds obtained for the first time were proved using IR and (1)H NMR spectra.