title: Two diphenylpropan-1,2-diol syringates from the roots of Erythrina variegata.
abstract: Two new diphenylpropan-1,2-diols, eryvarinols A (1) and B (2), were isolated from the roots of Erythrina variegata. Their structures were elucidated as 1-(4-hydroxy-2-methoxyphenyl)-2-(4-hydroxy-3,5-dimethoxybenzoyloxy)-3-(4-hydroxyphenyl)propan-1-ol (1) and its 3"-prenyl derivative (2) on the basis of spectroscopic and chemical evidence. Both these compounds are unusual diphenylpropan-1,2-diols with a syringyl group.
authors.affiliation: Faculty of Pharmacy, Meijo University, Yagoto, Tempaku-ku, Nagoya 468-8503, Japan. hitoshi@ccmfs.meijo-u.ac.jp
authors.forename: Hitoshi
authors.initials: H
authors.lastname: Tanaka
authors.forename: Miyuki
authors.initials: M
authors.lastname: Hirata
authors.forename: Hideo
authors.initials: H
authors.lastname: Etoh
authors.forename: Naoharu
authors.initials: N
authors.lastname: Watanabe
authors.forename: Hiroshi
authors.initials: H
authors.lastname: Shimizu
authors.forename: Mansoor
authors.initials: M
authors.lastname: Ahmad
authors.forename: Yukimasa
authors.initials: Y
authors.lastname: Terada
authors.forename: Toshio
authors.initials: T
authors.lastname: Fukai
mesh_terms: D004895:Erythrina / Q000737:chemistry*; D062425:Hydroxybenzoate Ethers; D062385:Hydroxybenzoates / Q000737:chemistry / Q000302:isolation & purification*; D015394:Molecular Structure; D019906:Nuclear Magnetic Resonance, Biomolecular; D010154:Pakistan; D018517:Plant Roots / Q000737:chemistry; D010946:Plants, Medicinal / Q000737:chemistry*; D011409:Propylene Glycols / Q000737:chemistry / Q000302:isolation & purification*; D013055:Spectrophotometry, Infrared
chemical_list: D062425:Hydroxybenzoate Ethers; D062385:Hydroxybenzoates; D011409:Propylene Glycols; C473442:eryvarinol A; C473447:eryvarinol B