Stereoselective synthesis of non symmetric dihydroxyethylene dipeptide isosteres via epoxyalcohols derived from α-amino acids
作者:Fabio Benedetti、Monica Magnan、Stanislav Miertus、Stefano Norbedo、Djiana Parat、Alessandro Tossi
DOI:10.1016/s0960-894x(99)00529-6
日期:1999.10
(1R,2R,3S, 4S)-4-Amino-3-hydroxy-1,2-epoxybutanes, accessible in four steps from L-aminoesters, react regio- and stereoselectively with diethyl aluminum cyanide to give (1R, 2S, 3S, 4S)-4-amino-2,3-dihydroxynitriles. Hydrolysis yields hydroxylactones equivalent to 2,3-dihydroxy-4-aminoacids. The sequence provides a novel approach to dihydroxyethylene isosteres potentially useful for new HIV-protease inhibitors. (C) 1999 Elsevier Science Ltd. All rights reserved.
(1R,2R,3S,4S)-4-氨基-3-羟基-1,2-环氧丁烷可经四步反应从L-氨基酸酯中获得,该环氧化物可与二乙基铝氰化物发生区域选择性及立体选择性反应,生成(1R,2S,3S,4S)-4-氨基-2,3-二羟基腈。水解后生成的羟基酯,相当于2,3-二羟基-4-氨基丙酸。该合成过程为设计双羟乙烯类似物提供了一种新方法,这些类似物可能在研制新型HIV蛋白酶抑制剂方面具有潜在用途。版权归属:1999年欧析科学有限公司,保留所有权利。