Enantioselective synthesis of natural biologically active ivaide A: 1,3-di-(R)-β-hydroxy-glyceride glycerol
摘要:
The natural 1,3-di-beta-hydroxy-glyceride glycerol ivaide A 1 from Ajuga iva has been synthesised by diacylation of dihydroxyacetone with 3-hydroxyhexadecanoic acid, followed by reduction to the corresponding glycerol derivative. The enantiomerically pure (R)-beta-hydroxyhexadecanoic ester intermediate 6 was obtained by a coupling reaction of an ethylacetoacetate dianion and the corresponding bromoalkyl, followed by the known reduction of the resulting beta-ketoester 5 by fermenting baker's yeast. (C) 1999 Elsevier Science Ltd. All rights reserved.
A novel total synthesis of aculeatin A via a stepwise approach
作者:Zhibin Zhang、Xiao Leng、Shenkun Yang、Cheng Liang、Shuangping Huang、Xiaoji Wang
DOI:10.1039/c6ra27140e
日期:——
isolated from the plant Amomum aculeatum, is a dispirocyclic compound having antimalarial activity. In this paper, we describe a novel synthetic approach to aculeatin A from 1-tetradecanal in nine steps via a stepwise strategy. The key features of this approach include the 1,3-diketone preparation from Claisen condensation of ketone and acyl chloride, cyclodehydration, and intramolecular oxa-Michael addition
从植物砂仁中分离出的Aculeatin A是一种具有抗疟疾活性的双螺环化合物。在本文中,我们通过一种逐步策略,描述了一种从九-步骤中从1-十四烷中合成aculeatin A的新颖方法。该方法的关键特征包括由Claisen的酮与酰氯的Claisen缩合制备1,3-二酮,进行环脱水作用,以及向2,3-dihydro-4 H -pyran-4-one中添加分子内的oxa-Michael 。
Enantioselective synthesis of natural biologically active ivaide A: 1,3-di-(R)-β-hydroxy-glyceride glycerol
作者:H.B Jannet、A Al Mourabit、A Gateau-Olesker、C Marazano、Z Mighri
DOI:10.1016/s0957-4166(99)00222-0
日期:1999.6
The natural 1,3-di-beta-hydroxy-glyceride glycerol ivaide A 1 from Ajuga iva has been synthesised by diacylation of dihydroxyacetone with 3-hydroxyhexadecanoic acid, followed by reduction to the corresponding glycerol derivative. The enantiomerically pure (R)-beta-hydroxyhexadecanoic ester intermediate 6 was obtained by a coupling reaction of an ethylacetoacetate dianion and the corresponding bromoalkyl, followed by the known reduction of the resulting beta-ketoester 5 by fermenting baker's yeast. (C) 1999 Elsevier Science Ltd. All rights reserved.