Asymmetric synthesis of (3S,4R,7S)-(−)-3-hydroxy-7-methoxy-2,2,4-trimethyl-decanoic acid, a plausible polyketide fragment of halipeptin A
作者:Carmela Della Monica、Nakia Maulucci、Francesco De Riccardis、Irene Izzo
DOI:10.1016/s0957-4166(03)00622-0
日期:2003.10
The first enantioselective synthesis of (3S,4R,7S)-(-)-3-hydroxy-7-methoxy-2,2,4-trimethyl-decanoic acid 4 in 11 steps and 6% overall yield, starting from commercially available methyl 2,2-dimethyl-3-hydroxy propionate 5 is described. The stereochemical flexible synthetic pathway involves a Brown's crotylboration reaction and a Corey-Bakshi-Shibata (CBS) oxazaborolidine-mediated reduction. (C) 2003 Elsevier Ltd. All rights reserved.