Stereoselective synthesis of resorcylic acid lactone Cochliomycin B
作者:G. Nagalatha、N. Siva Ganesh、A. Venkat Narsaiah
DOI:10.1016/j.tetlet.2021.153410
日期:2021.10
The total synthesis of 14-membered resorcylic acidlactone, Cochliomycin B has prescribed, in a convergent manner, from readily available starting materials, d-galactose, l-aspartic acid and ethyl acetoacetate. The key reactions involved in the synthesis are Julia-Kocienski olefination, E-selective Horner-Wadsworth-Emmons olefination and intramolecular lactonization.
14 元间苯二甲酸内酯的全合成,Cochliomycin B 以收敛的方式规定,从容易获得的起始原料,d-半乳糖,l-天冬氨酸和乙酰乙酸乙酯。合成中涉及的关键反应是 Julia-Kocienski 烯化、E-选择性 Horner-Wadsworth-Emmons 烯化和分子内内酯化。
Enantioselective total synthesis of aigialomycin D
作者:Jiangping Lu、Junying Ma、Xingang Xie、Bo Chen、Xuegong She、Xinfu Pan
DOI:10.1016/j.tetasy.2006.03.027
日期:2006.4
An efficient, convergent approach for the total synthesis of aigialomycin D I is described. Key features of the synthetic strategy include (a) a Sharpless asymmetric epoxidation reaction and selective opening of a 2,3-epoxy alcohol to elaborate the two hydroxy-bearing stereogenic centers at the C5' and C6' positions; (b) a Kocienski modified Julia protocol to construct the two E-configured double bonds; and (c) Yamaguchi macrolactonization to acccess the 14-membered macrocyclic ring. (c) 2006 Elsevier Ltd. All rights reserved.