title: Triterpenoid saponins from Ardisia mamillata.
abstract: Two saponins were isolated from the roots of Ardisia mamillata HANCE. Their structures were established on the basis of MALDI-TOFMS, 1H, 13C NMR and 2D NMR (COSY, HOHAHA, HETCOR, HMBC and ROESY) spectra, and on chemical evidence, to be ardisimamilloside A, 3-O-[alpha-L-rhamnopyranosyl-(1 --> 2)-beta-D-glucopyranosyl-(1 --> 4)-[beta-D-glucopyranosyl-(1 --> 2)]-alpha-L-arabinopyranosyl]-3beta, 16alpha,28alpha-trihydroxy-13beta,28-epoxy-oleanan+ ++-30-al; and ardisimamilloside B, 3-O-[alpha-L-rhamnopyranosyl-(1 --> 2)-beta-D-glucopyranosyl-(1 --> 4)-[beta-D-glucopyranosyl-( 1 --> 2)]-alpha-L-arabinopyranosyl]-beta3-hydroxy-13beta,28- epoxy-oleanan-16-oxo-30-al.
authors.affiliation: Faculty of Pharmaceutical Sciences, Nagoya City University, Tanabe-dori, Japan.
authors.forename: J
authors.initials: J
authors.lastname: Huang
authors.forename: Y
authors.initials: Y
authors.lastname: Ogihara
authors.forename: H
authors.initials: H
authors.lastname: Zhang
authors.forename: N
authors.initials: N
authors.lastname: Shimizu
authors.forename: T
authors.initials: T
authors.lastname: Takeda
mesh_terms: D002236:Carbohydrate Conformation; D002240:Carbohydrate Sequence; D009682:Magnetic Resonance Spectroscopy; D019684:Magnoliopsida / Q000737:chemistry*; D008969:Molecular Sequence Data; D009828:Oleanolic Acid / Q000031:analogs & derivatives; D012503:Saponins / Q000737:chemistry / Q000302:isolation & purification*; D019032:Spectrometry, Mass, Matrix-Assisted Laser Desorption-Ionization; D014315:Triterpenes / Q000737:chemistry / Q000302:isolation & purification*
chemical_list: D012503:Saponins; D014315:Triterpenes; C419064:ardisimamilloside A; C419062:ardisimamilloside B; D009828:Oleanolic Acid