Synthesis of polyhydroxy piperidines and their analogues: a novel approach towards selective inhibitors of α-glucosidase
作者:Ganesh Pandey、Kishor Chandra Bharadwaj、M. Islam Khan、K. S. Shashidhara、Vedavati G. Puranik
DOI:10.1039/b804278k
日期:——
been synthesized from precursors 18a and 18b, obtained in both enantiomeric forms from d-ribose. Out of these polyhydroxy piperidine azasugars, 22, 39 and 20 were found to be potent as well as selective inhibitors of alpha-glucosidase with K(i) values ranging as low as 1.07 microM, 16.4 microM, and 88.2 microM, respectively. Replacement of the hydroxy methylene moiety of (K(i) 33% at 1 mM) by an amino
从前体18a和18b合成了各种多羟基哌啶氮杂糖,它们是从d-核糖以两种对映体形式获得的。在这些多羟基哌啶氮杂糖中,发现22、39和20是有效的α-葡萄糖苷酶以及选择性抑制剂,其K(i)值分别低至1.07 microM,16.4 microM和88.2 microM。氨基亚甲基部分(32,K(i)36.8 microM)取代了(K(i)在1 mM处33%的羟基亚甲基部分)显示出活性显着提高(几乎30倍)。此外,通过用十二烷基进行N-烷基化来增加的亲脂性(36),其活性增加了三倍(K(i)217 microM到K(i)72.3 microM)。