Highly Enantioselective Thiolysis of Prochiral Cyclic Anhydrides Catalyzed by Amino Alcohol Bifunctional Organocatalysts and Its Application to the Synthesis of Pregabalin
作者:Hong-Jun Yang、Fang-Jun Xiong、Xiao-Fei Chen、Fen-Er Chen
DOI:10.1002/ejoc.201300464
日期:2013.7
Asymmetric thiolysis of prochiral cyclic anhydrides was achieved with our developed chiral sulfonamide and squaramide bifunctional organocatalysts based on amino alcohol scaffolds. The corresponding thioesters were obtained in high yields with excellent enantioselectivities. The usefulness of this methodology was demonstrated in the enantioselective synthesis of pregabalin.
我们开发的基于氨基醇支架的手性磺酰胺和方酸酰胺双功能有机催化剂实现了前手性环酐的不对称硫解。相应的硫酯以高产率获得,具有优异的对映选择性。这种方法的实用性在普瑞巴林的对映选择性合成中得到了证明。