Synthesis of Branched-Chain Oligosaccharides in Sarsasaponins by Dehydrative Glycosylation
作者:Shinkiti Koto、Naohiko Morishima、Masaharu Uchino、Misa Fukuda、Masayo Yamazaki、Shonosuke Zen
DOI:10.1246/bcsj.61.3943
日期:1988.11
The branched-chain oligosaccharides, 6-O-(β-d-glucopyranosyl)-4-O-(α-l-rhamnopyranosyl)-d-glucopyranose, and 2,6-di-O-β-d-glucopyranosyl)-4-O-(α-l-rhamnopyranosyl)-d-glucopyranose, which compose sarsasaponins, as well as the structurally related 2-O-(β-d-glucopyranosyl)-4-O-(α-l-rhamnopyranosyl)-d-glucopyranose were synthesized stepwise via dehydrative glycosylation by a ternary mixture of p-nitrobenzenesulfonyl chloride, silver triflate, and triethylamine.