38597-12-5Relevant articles and documents
Based on 4 - methyl [...] synthesis method of a plurality of glycoside
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, (2018/10/11)
The invention discloses a method for synthesizing various glucosides on a basis of 4-methylumbelliferone. According to the invention, a glycosyl donor peracetyl saccharide and a glycosyl acceptor 4-methylumbelliferone are subjected to a glycosylation reaction under room temperature or under heating with dichloromethane or 1,2-dichloroethane as a solvent and with the combined effect of Lewis acid boron trifluoride ethyl ether and organic alkali triethylamine or pyridine; and protecting groups are removed, such that various glucosides based on 4-methylumbelliferone can be obtained. The glucosides include 4-methylumbelliferone-beta-D-glucopyranosiduronide, 4-methylumbelliferone-beta-D-glucopyranoside, 4-methylumbelliferone-beta-D-xylopyranoside, 4-methylumbelliferone-beta-D-ribofuranoside, 4-methylumbelliferone-alpha-D-galactopyranoside, and 4-methylumbelliferone-alpha-D-mannopyranoside. The method is simple, and can produce a beta or alpha single-configuration target. A glycosylation reaction yield can reach 17-93%.