Multicomponent Synthesis of Unsaturated γ-Lactam Derivatives. Applications as Antiproliferative Agents through the Bioisosterism Approach: Carbonyl vs. Phosphoryl Group
作者:Xabier del Corte、Adrián López-Francés、Ilia Villate-Beitia、Myriam Sainz-Ramos、Edorta Martínez de Marigorta、Francisco Palacios、Concepción Alonso、Jesús M. de los Santos、José Luis Pedraz、Javier Vicario
DOI:10.3390/ph15050511
日期:——
We report efficient synthetic methodologies for the preparation of 3-amino and 3-hydroxy 3-pyrrolin-2-ones (unsaturated γ-lactams) through a multicomponent reaction of amines, aldehydes and acetylene or pyruvate derivatives. The densely substituted γ-lactam substrates show in vitro cytotoxicity, inhibiting the growth of the carcinoma human tumor cell lines RKO (human colon epithelial carcinoma), SKOV3
A novel class of small-molecule caspase-3 inhibitors prepared by multicomponent reactions
作者:Qiuhua Zhu、Lixin Gao、Zhipeng Chen、Sichao Zheng、Huafei Shu、Jia Li、Huanfeng Jiang、Shuwen Liu
DOI:10.1016/j.ejmech.2012.05.001
日期:2012.8
A series of tetra- and pentasubstituted polyfunctional dihydropyrroles 5 and 6 were synthesized via practical multicomponent reactions (MCRs) for research on their structure activity relationship as caspase-3 inhibitors. Among 39 compounds evaluated, 14 of them exhibited inhibition against caspase-3 with IC50 ranging from 5 to 20 mu M. The inhibitory activities of 5 and 6 depend on the nature of substituents on different positions. 5 and 6 possess a different scaffold from those previously reported and are the first caspase-3 inhibitors prepared via MCRs. The most active compounds 5k (IC50 = 5.27 mu M) could therefore be used as a lead for the development of highly potent caspase-3 inhibitors as drug candidates for therapeutic agents by taking advantage of MCRs. (C) 2012 Elsevier Masson SAS. All rights reserved.