Kinetic control of proline amide rotamers:: Total synthesis of trans,trans- and cis,cis-ceratospongamide

被引:45
作者
Deng, SJ [1 ]
Taunton, J [1 ]
机构
[1] Univ Calif San Francisco, Dept Mol & Cellular Pharmacol, San Francisco, CA 94143 USA
关键词
D O I
10.1021/ja017160a
中图分类号
O6 [化学];
学科分类号
0703 ;
摘要
Ceratospongamide is a cyclic peptide natural product that is biosynthesized as a mixture of two proline rotamers. Remarkably, these rotamers do not detectably interconvert at temperatures up to 100 °C. Here we report high-yielding syntheses of each rotamer and demonstrate that the threonine-derived oxazoline plays a critical role in determining the kinetic distribution of conformational isomers. Copyright © 2002 American Chemical Society.
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页码:916 / 917
页数:2
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