Tuning of β-glucosidase and α-galactosidase inhibition by generation and in situ screening of a library of pyrrolidine-triazole hybrid molecules
作者:Macarena Martínez-Bailén、Ana T. Carmona、Elena Moreno-Clavijo、Inmaculada Robina、Daisuke Ide、Atsushi Kato、Antonio J. Moreno-Vargas
DOI:10.1016/j.ejmech.2017.06.055
日期:2017.9
The preliminary screening of two libraries of epimeric (pyrrolidin-2-yl)triazoles (14a-s and 22a-s), generated via click chemistry, allowed the rapid identification of four alpha-galactosidase (coffee beans) inhibitors (22b,k,p,r) and two beta-glucosidase (almond) inhibitors (14b,f) in the low mu M range. The additional biological analysis of 14b,f towards beta-glucocerebrosidase (human lysosomal beta-glucosidase), as target enzyme for Gaucher disease, showed a good correlation with the inhibition results obtained for the plant (almond) enzyme. Surprisingly, although these compounds showed inhibition towards beta-glucocerebrosidase as acid hydrolase, they did not inhibit bovine liver beta-glucosidase as neutral hydrolase. In contrast to what was observed for beta-glucosidase inhibition, the coffee bean alpha-galactosidase inhibitors of the epimeric library (22b,k,p,r) only showed weak inhibition towards human lysosomal alpha-galactosidase. (C) 2017 Elsevier Masson SAS. All rights reserved.