Authors: L A Baltina L A Baltina R M Kondratenko O A Plyasunova S A Nepogodiev R A Field
Publish Date: 2010/08/27
Volume: 46, Issue: 4, Pages: 576-582
Abstract
A new method for synthesizing triterpene 3Ogalactosides analogs of glycyrrhizic acid GA based on 18βglycyrrhetic acid GLA methyl esters and 1819dehydroGLA using 2346tetraOacetylaDgalactopyranosyl bromide as the glycosyl donor I–Br promoter and 4Å molecular sieves was developed The method could produce primarily 3OαD or βDgalactopyranosides depending on the reaction conditions The 3OαDgalactopyranoside of GLA exhibited an index of selectivity IS 29 times greater than that of GA for inhibition of accumulation of virusspecific protein p24 of HIV1 βDGalactopyranoside of GLA was more cytotoxic for MT4 cells and exhibited weak antiHIV1 activity
Keywords: