title: A new carotenoid glycoside from Rehmannia glutinosa.
abstract: A new carotenoid glycoside, namely neo-rehmannioside (1), together with five known compounds, 6-O-seco-hydroxyaeginetoyl ajugol (2), oxyrehmaionoside B (3), ajugol (4), geniposidic acid (5) and geniposide (6) was isolated from the 95% ethanol extract of dry roots of Rehmannia glutinosa. The structure of the new compound (1) was determined based on MS, IR, 1-D and 2-D NMR spectral data.
authors.affiliation: Department of Biochemistry, State Key Laboratory of Molecular Neuroscience, Molecular Neuroscience Center, Biotechnology Research Institute, The Hong Kong University of Science and Technology, Clear Water Bay, Kowloon, Hong Kong, China.
authors.forename: Guang-Miao
authors.initials: GM
authors.lastname: Fu
authors.forename: She-Po
authors.initials: SP
authors.lastname: Shi
authors.forename: Fanny C F
authors.initials: FC
authors.lastname: Ip
authors.forename: Hai-Hong
authors.initials: HH
authors.lastname: Pang
authors.forename: Nancy Y
authors.initials: NY
authors.lastname: Ip
mesh_terms: D002338:Carotenoids / Q000302:isolation & purification*; D002851:Chromatography, High Pressure Liquid; D006027:Glycosides / Q000302:isolation & purification*; D009682:Magnetic Resonance Spectroscopy; D013058:Mass Spectrometry; D018517:Plant Roots / Q000737:chemistry; D032267:Rehmannia / Q000737:chemistry*; D013055:Spectrophotometry, Infrared; D013056:Spectrophotometry, Ultraviolet
chemical_list: D006027:Glycosides; D002338:Carotenoids