title: Two new monoterpene peroxide glycosides from Aster scaber.
abstract: The aerial part of Aster scaber Thunb. (Asteraceae) yielded two new monoterpene peroxide glycosides, (3S)-3-O-(3',4'-diangeloyl-beta-D-glucopyranosyloxy)-7-hydroperoxy-3,7-dimethylocta-1,5-diene (1) and (3S)-3-O-(3',4'-diangeloyl-beta-D-glucopyranosyloxy)-6-hydroperoxy-3,7-dimethylocta-1,7-diene (2), and five known compounds, alpha-spinasterol (3), germacra-4(15),5,10(14)-triene-1-beta-ol (4), 7-methoxy-4(15)-oppositen-1-beta-ol (5), 6alpha-methoxy-4(15)-eudesmane-1beta-ol (6) and alpha-spinasterol 3-O-beta-D-glucopyranoside (7). The structures were established by chemical and spectroscopic methods.
authors.affiliation: Natural Products Laboratory, College of Pharmacy, Sung Kyun Kwan University, Suwon, Korea.
authors.forename: C M
authors.initials: CM
authors.lastname: Jung
authors.forename: H C
authors.initials: HC
authors.lastname: Kwon
authors.forename: J J
authors.initials: JJ
authors.lastname: Seo
authors.forename: Y
authors.initials: Y
authors.lastname: Ohizumi
authors.forename: K
authors.initials: K
authors.lastname: Matsunaga
authors.forename: S
authors.initials: S
authors.lastname: Saito
authors.forename: K R
authors.initials: KR
authors.lastname: Lee
mesh_terms: D019659:Asteraceae / Q000737:chemistry*; D002240:Carbohydrate Sequence; D002855:Chromatography, Thin Layer; D005960:Glucosides / Q000737:chemistry* / Q000302:isolation & purification; D006868:Hydrolysis; D007723:Korea; D009682:Magnetic Resonance Spectroscopy; D013058:Mass Spectrometry; D008968:Molecular Conformation; D008969:Molecular Sequence Data; D039821:Monoterpenes; D010084:Oxidation-Reduction; D010946:Plants, Medicinal / Q000737:chemistry*
chemical_list: C440199:3-O-(3',4'-diangeloylglucopyranosyloxy)-6-hydroperoxy-3,7-dimethylocta-1,7-diene; C440198:3-O-(3',4'-diangeloylglucopyranosyloxy)-7-hydroperoxy-3,7-dimethylocta-1,5-diene; D005960:Glucosides; D039821:Monoterpenes