A family of novel bifunctional organocatalysts: Highly enantioselective alcoholysis of meso cyclic anhydrides and its application for synthesis of the key intermediate of P2X7 receptor antagonists
作者:Hong-Jun Yang、Fang-Jun Xiong、Jie Li、Fen-Er Chen
DOI:10.1016/j.cclet.2013.04.009
日期:2013.7
Abstract A family of novel squaramides/sulfamides based on 1,2-alkamine was developed as chiral bifunctional catalysts to promote the asymmetric alcoholysis of meso cyclic anhydrides. The hemiesters were obtained in high yield with up to 93% ee. The usefulness of this methodology was demonstrated in the asymmetric synthesis of the key intermediate of P2X7 receptor antagonists.
摘要研制了一系列以1,2-链胺为基础的新型方酸/亚磺酰胺作为手性双官能催化剂,以促进内消旋环酸酐的不对称醇解。半酯以高达93%ee的高收率获得。P2X7受体拮抗剂关键中间体的不对称合成证明了该方法的有效性。