Regioselective methylation of methyl glycopyranosides with diazomethane in the presence of transition-metal chlorides and of boric acid
作者:Evgeny V. Evtushenko
DOI:10.1016/s0008-6215(99)00044-0
日期:1999.3
Abstract Partial methylation of the methyl pyranosides of a number of pentoses, hexoses, 6-deoxyhexoses, methyl uronates and their methyl ethers with diazomethane in the presence of transition-metal chlorides and boric acid was studied. It was found for methyl glycosides of pentoses and 6-deoxyhexoses that tin(II), antimony(III), and titanium(IV) chlorides as well as boric acid promoted substitution
A preparation and screening strategy for glycosidase inhibitors
作者:Gabriela Pistia-Brueggeman、Rawle I Hollingsworth
DOI:10.1016/s0040-4020(01)00877-8
日期:2001.10
synthesis of a library of carbohydrate compounds belonging to four classes of glycosidase inhibitors: glycosides, aldonic acid lactams, aldonic acid lactones and dideoxy-iminoalditols. The complex mixture was separated into individual components that were screened for activity against α- and β-glucosidases. Among these were two 2-O-methyl glycosides that reduced the rate of the enzymatically-catalyzed hydrolysis