Role of the side chain stereochemistry in the α-glucosidase inhibitory activity of kotalanol, a potent natural α-glucosidase inhibitor
作者:Weijia Xie、Genzoh Tanabe、Kanjyun Matsuoka、Mumen F.A. Amer、Toshie Minematsu、Xiaoming Wu、Masayuki Yoshikawa、Osamu Muraoka
DOI:10.1016/j.bmc.2011.02.028
日期:2011.4
Synthesis and evaluation of four diastereomers (9a, 9b, 9c and 9d) of kotalanol, a potent α-glucosidase inhibitor isolated from an Ayurvedic medicinal plant Salacia species, are described. Stereo-inversion at C-3′ and C-4′ of kotalanol (2) caused significant decrease of the inhibitory activities against maltase and sucrase, whereas inhibitory activity against isomaltase sustained, thus resulted in
合成与四个非对映体(评价图9a,图9b,图9c和9d中kotalanol,一种有效的α葡萄糖苷酶抑制剂从印度草药的药用植物中分离的)五层龙物种,进行说明。富他酚(2)在C-3'和C-4'处的立体转化导致对麦芽糖酶和蔗糖酶的抑制活性显着降低,而对异麦芽糖酶的抑制活性持续存在,从而导致了对异麦芽糖酶的选择性。