METHOD FOR PRODUCING GLYCYRRHIZINIC ACID AND GALACTURO GLYCYRRHIZINIC ACID, AND INTERMEDIATE USED FOR THE PRODUCTION METHOD

摘要

PROBLEM TO BE SOLVED: To provide a synthesis method that makes it possible to produce high-purity glycyrrhizinic acid or galacturo glycyrrhizinic acid, simply and in high yields.SOLUTION: A production method includes performing glycosylation of position-3 hydroxy group of glycyrrhetinic acid, then performing selective galactosylation or glycosylation at position-2', and through deprotection, performing selective oxidation of a primary hydroxy group.SELECTED DRAWING: None