Synthesis of Optically Pure Diglycerol Tetraether Model Lipids with Non-Natural Branching Pattern
作者:Thomas Markowski、Simon Drescher、Annette Meister、Gerd Hause、Alfred Blume、Bodo Dobner
DOI:10.1002/ejoc.201100758
日期:2011.10
Three new, chain-modified, optically pure diglycerol tetraether lipids with one membrane-spanning chain have been synthesised. These lipids contain a different number and constitution of the methyl branches connected to the hydrophobic chains as compared with natural archaeal or other previously synthesised lipids. The correct chirality of the branched alkyl chain was introduced starting from commercially
已经合成了三种新的、链修饰的、光学纯的双甘油四醚脂质,具有一条跨膜链。与天然古菌或其他先前合成的脂质相比,这些脂质包含不同数量和组成的甲基支链,连接到疏水链。从市售的 (S)-香茅基溴开始引入支链烷基链的正确手性。对于链延长,使用了铜催化的格氏偶联反应。合适的封闭甘油醚通过格鲁布斯复分解缩合到四醚部分。在烷基链的 10 位和/或 23 位插入两个或四个光学纯甲基支链足以模拟天然四醚脂质的主要特性。在这种情况下,