title: Phenolic Derivatives from Hypericum japonicum.
abstract: Three new acylphloroglucinol glycosides, hypericumols A - C, together with fifteen known phenolic derivatives, were isolated from the total phenolic extract of Hypericum japonicum. Hypericumols A, B, and C were characterized as 4,6-dimethyl-2-methylpropanoylphloroglucinol-1-O-β-D-glucopyranoside (1), 4-methyl-2-methylpropanoylphloroglucinol-1-O-β-D-glucopyranoside (2), and (2'S)-4,6-dimethyl-2-methylbutyrylphloroglucinol-1-O-β-D-glucopyranoside (3), respectively, on the basis of spectroscopic data interpretation and chemical degradation reaction.
authors.forename: Guoyong
authors.initials: G
authors.lastname: Luo
authors.forename: Min
authors.initials: M
authors.lastname: Zhou
authors.forename: Qi
authors.initials: Q
authors.lastname: Ye
authors.forename: Jun
authors.initials: J
authors.lastname: Mi
authors.forename: Dongmei
authors.initials: D
authors.lastname: Fang
authors.forename: Guolin
authors.initials: G
authors.lastname: Zhang
authors.forename: Yinggang
authors.initials: Y
authors.lastname: Luo
mesh_terms: D020902:Hypericum / Q000737:chemistry*; D015394:Molecular Structure; D019800:Phenol / Q000737:chemistry*
chemical_list: D019800:Phenol