Asymmetric synthesis of 3-amino-4-hydroxy-2-(hydroxymethyl)pyrrolidines as potential glycosidase inhibitors
作者:Kim L. Curtis、Emma L. Evinson、Sandeep Handa、Kuldip Singh
DOI:10.1039/b711994a
日期:——
Three diastereoisomers of 3-amino-4-hydroxy-2-(hydroxymethyl)pyrrolidine have been synthesised by a divergent route starting from trans-4-hydroxy-L-proline. Regio- and stereoselective introduction of the 3-amino and 4-hydroxyl functional groups was achieved using either a tethered aminohydroxylation reaction or by employing intra- and intermolecular epoxide-opening strategies. Preliminary biological data indicate that two of these novel amino pyrrolidines are moderate inhibitors of β-galactosidase.
以
反式-4-羟基-
L-脯氨酸为起点,通过不同的路线合成了 3-
氨基-
4-羟基-2-(羟甲基)
吡咯烷的三种非对映异构体。通过系链
氨基羟化反应或分子内和分子间
环氧化物开环策略,实现了 3-
氨基和
4-羟基官能团的区域和立体选择性引入。初步
生物数据表明,这些新型
氨基
吡咯烷中的两种是
β-半乳糖苷酶的温和
抑制剂。