Asymmetric synthesis of a highly functionalized β-amino acid: the key amino acid of sperabillins B and D
作者:Stephen G. Davies、Osamu Ichihara
DOI:10.1016/s0040-4039(99)01954-1
日期:1999.12
The asymmetric synthesis of the highly functionalized (3R,5R,6R)-3,6-diamino-5-hydroxyheptanoic acid, the key amino acid fragment of sperabillins B and D, was achieved by an asymmetric Michael addition of lithium (R)-(α-methylbenzyl)allylamide 10 to (E,E)-2,5-heptadienoate establishing the C-3 stereogenic centre, the information from which was propagated to the C-5 and C-6 centres by a highly stereoselective
高度功能化的(3 R,5 R,6 R)-3,6-二氨基-5-羟基庚酸是Sperabillins B和D的关键氨基酸片段的不对称合成是通过锂的不对称Michael加成(R)-(α-甲基苄基)烯丙酰胺10至(E,E)-2,5-庚二烯酸酯建立C-3立体中心,信息通过高度立体选择性传播到C-5和C-6中心碘代氨基甲酸酯化反应。