Studies on the barks of the family salicaceae-XVI

Add time:08/04/2019    Source:sciencedirect.com

Complete methylation of salireposide followed by hydrolysis to yield 2,3,4,6-tetra-O-methylglucose as the only sugar suggested that the long-accepted structure for salireposide as hydroxypopulin (I) was incorrect. The mass spectral fragmentation pattern proved that the benzoyl substitution of salireposide was not on the glucose moiety and that salireposide must be 2-benzoyloxymethyl-4-hydroxyphenyl-β-D-glucoside (II). This was confirmed by its enzymic hydrolysis with β-glucosidase to glucose and benzoylgentisyl alcohol (VI).

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