Gamnamoside, a Phenylpropanoid Glycoside from Persimmon Leaves (Diospyros kaki) with an Inhibitory Effect against an Alcohol Metabolizing Enzyme

Phytochemical investigation of the methanolic extract of Diospyros kaki leaves led to the isolation of osmanthuside H (1) and a new phenol glycoside, named gamnamoside [4-(3-hydroxypropyl)-2-methoxyphenol \beta/TEX>-D-apiofuranosyl( 1 \rightarrow/TEX> 6)\beta/TEX>-D-glucopyranoside] (2) along with (-) catechin (3) through a series of reversed phase column chromatography and preparative C18 HPLC. The structures of the...