title: Three new flavonoid glycosides, byzantionoside B 6'-O-sulfate and xyloglucoside of (Z)-hex-3-en-1-ol from Ruellia patula.
abstract: Three new flavonoid glycosides, demethoxycentaureidin 7-O-β-D-galacturonopyranoside, pectolinarigenin 7-O-α-L-rhamnopyranosyl-(1‴→4″)-β-D-glucopyranoside and 7-O-α-L-rhamnopyranosyl-(1‴→4″)-β-D-glucuronopyranoside, a new megastigmane glucoside, byzantionoside B 6'-O-sulfate, and a new (Z)-hex-3-en-1-ol O-β-D-xylopyranosyl-(1″→2')-β-D-glucopyranoside, were isolated from leaves of Ruellia patula JACQ., together with 12 known compounds, β-sitosterol glucoside, vanilloside, bioside (decaffeoyl verbascoside), acteoside (verbascoside), syringin, benzyl alcohol O-β-D-xylopyranosyl-(1″→2')-β-D-glucopyranoside, cistanoside E, roseoside, phenethyl alcohol O-β-D-xylopyranosyl-(1″→2')-β-D-glucopyranoside, (+)-lyoniresinol 3α-O-β-D-glucopyranoside, isoacteoside and 3,4,5-trimethoxyphenol O-α-L-rhamnopyranosyl-(1″→6')-β-D-glucopyranoside. Their structures were elucidated by means of spectroscopic analyses.
authors.affiliation: Department of Pharmacognosy, Graduate School of Biomedical Sciences, Hiroshima University.
authors.forename: Mamdouh Nabil
authors.initials: MN
authors.lastname: Samy
authors.forename: Hany Ezzat
authors.initials: HE
authors.lastname: Khalil
authors.forename: Sachiko
authors.initials: S
authors.lastname: Sugimoto
authors.forename: Katsuyoshi
authors.initials: K
authors.lastname: Matsunami
authors.forename: Hideaki
authors.initials: H
authors.lastname: Otsuka
authors.forename: Mohamed Salah
authors.initials: MS
authors.lastname: Kamel
mesh_terms: D027901:Acanthaceae / Q000737:chemistry*; D000475:Alkenes / Q000737:chemistry; D005419:Flavonoids / Q000737:chemistry; D005960:Glucosides / Q000737:chemistry* / Q000302:isolation & purification; D006027:Glycosides / Q000737:chemistry* / Q000302:isolation & purification; D000441:Hexanols / Q000737:chemistry; D009682:Magnetic Resonance Spectroscopy; D008968:Molecular Conformation; D045792:Norisoprenoids / Q000737:chemistry* / Q000302:isolation & purification; D018515:Plant Leaves / Q000737:chemistry; D012210:Rhamnose / Q000031:analogs & derivatives* / Q000737:chemistry*; D013431:Sulfates / Q000737:chemistry; D014994:Xylose / Q000031:analogs & derivatives* / Q000737:chemistry*
chemical_list: D000475:Alkenes; D005419:Flavonoids; D005960:Glucosides; D006027:Glycosides; D000441:Hexanols; D045792:Norisoprenoids; D013431:Sulfates; C549754:byzantionoside B; C509809:(Z)-hex-4-en-1-ol; D014994:Xylose; D012210:Rhamnose