title: Isolation of methyl 27-caffeoyloxyoleanolate--a new oleanane Triterpenoid from the roots of Hibiscus vitifolius.
abstract: A new oleanane triterpenoid, methyl 27-caffeoyloxyoleanolate (2), together with eight known compounds viz. oleanolic acid, kaempferol, quercetin, beta-sitosterol-3-O-beta-D-glucopyranoside, kaempferol-3-O-alpha-D-rhamnopyranoside, gossypin, quercetin-3-O-beta-D-glucopyranoside and mangiferin were isolated from the ethanol extract of roots of Hibiscus vitifolius Linn. The structure of the new compound 2 was elucidated from spectroscopic, ESI-MS and physical data. The eight known compounds were identified by comparison of their physical and spectroscopic data with those reported in the literature.
authors.affiliation: Regional Research Institute of Unani Medicine, Royapuram, Chennai - 600 013, Tamil Nadu, India. samy_durai1978@yahoo.co.in
authors.forename: Duraisamy
authors.initials: D
authors.lastname: Ramasamy
authors.forename: Ariamuthu
authors.initials: A
authors.lastname: Saraswathy
mesh_terms: D031584:Hibiscus / Q000737:chemistry*; D009682:Magnetic Resonance Spectroscopy; D009828:Oleanolic Acid / Q000031:analogs & derivatives* / Q000737:chemistry / Q000302:isolation & purification; D018517:Plant Roots / Q000737:chemistry
chemical_list: C413246:oleanane; D009828:Oleanolic Acid