Synthesis of novel pyrazolopyrrolizinones as prospective anticancer agents

C Rochais, JSDO SANTOS, P Dallemagne, S Rault

Index: Rochais, Christophe; Sopkova-de Oliveira Santos, Jana; Dallemagne, Patrick; Rault, Sylvain Heterocycles, 2006 , vol. 68, # 10 p. 2063 - 2077

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Citation Number: 10

Abstract

Résumé/Abstract Herein we describe the access of novel pyrazolopyrrolizinones from commercial arylacetonitriles. The first step conducts to the corresponding aminoester which was first submitted to Clauson-Kaas procedure. Amidification and cyclisation afford then the first examples of the expected heterocycles. In order to improve the sequence and to obtain N-substituted isomers, 3-aryl-5-(pyrrolidin-1-ylcarbonyl)-4-(1H-pyrrol-1-yl)-1H-pyrazoles ( ...