Synthesis of stereopure acyclic 1,5-dimethylalkane chirons: building blocks of highly methyl-branched natural products
作者:Nan-Sheng Li、Joseph A. Piccirilli
DOI:10.1016/j.tet.2013.09.020
日期:2013.11
strategy, two fragments of β-d-mannosyl phosphomycoketide (C32-MPM) and four stereopure 1,5-dimethylalkane C10 chirons are prepared. These C32-MPM fragments and C10 chirons have shown great potential application as building blocks for the synthesis of highly methyl-branched natural products containing chiral oligoisoprenoid-like chains.
朝stereopure一种有效的合成方法无环从甲基(2- 1,5- dimethylalkane积木- [R)-3-羟基-2-甲基丙酸酯([R )- 1(> 99%ee)和甲基(2-小号)-3-羟基2-甲基丙酸酯(小号) - 1(> 99%ee)的通过一系列的化学转化,包括朱莉娅- Kocienski烯和二酰亚胺还原的,被描述。通过这种策略,β-的两个片段d -mannosyl phosphomycoketide(Ç 32 -MPM)和四个stereopure 1,5- dimethylalkaneÇ 10个制备chirons。这些Ç 32个-MPM片段和C 10 chirons都表现出极大的潜在应用的构件块的含有手性oligoisoprenoid状链高度甲基支化的天然产物的合成。