Harnessing pyrrolidine iminosugars into dimeric structures for the rapid discovery of divalent glycosidase inhibitors
作者:Ana T. Carmona、Sebastián Carrión-Jiménez、Valeria Pingitore、Elena Moreno-Clavijo、Inmaculada Robina、Antonio J. Moreno-Vargas
DOI:10.1016/j.ejmech.2018.04.008
日期:2018.5
libraries (1a-l, 1a'-l' and 2a-l) of dimeric iminosugars through CuAAC reaction between three different alkynyl pyrrolidines and a set of diazides was carried out. The resulting crude dimers were screened in situ against two α-fucosidases (libraries 1a-l and 1a'-l') and one β-galactosidase (2a-l). This method is pioneer in the search of divalent glycosidase inhibitors. It has allowed the rapid identification
通过三种不同的炔基吡咯烷与一组叠氮化物之间的CuAAC反应合成了三聚亚氨基糖的三个文库(1a-1、1a'-1'和2a-1)。针对两种α-岩藻糖苷酶(文库1a-1和1a'-1')和一种β-半乳糖苷酶(2a-1)原位筛选所得的粗二聚体。该方法是寻找二价糖苷酶抑制剂的先驱。它可以快速鉴定二聚体1i是来自牛肾(Ki = 0.15 nM)和智人(Ki = 60 nM)的α-岩藻糖苷酶的最佳抑制剂,而二聚体2e是来自牛肝的β-半乳糖苷酶的最佳抑制剂(Ki = 5.8μM)。为了评估抑制作用中可能的二价作用,还进行了参考单体的合成和生物学分析。