title: Structure determination of a new lupane-type triterpene, tiarellic acid, isolated from Tiarella polyphylla.
abstract: A new 27-carboxylic lupane-type triterpene, tiarellic acid (1), was isolated from Tiarella polyphylla together with corosolic acid (2) and tormentic acid (3). Tiarellic acid was characterized as 3,23-dihydroxy-20(29)-lupen-27-oic acid and its NMR data were unambiguously assigned using 2-D NMR techniques.
authors.affiliation: Department of Medicinal Plant Resources, Mokpo National University, Jeonnam, Korea.
authors.forename: Si-Hyung
authors.initials: SH
authors.lastname: Park
authors.forename: Sei-Ryang
authors.initials: SR
authors.lastname: Oh
authors.forename: Kyung-Seop
authors.initials: KS
authors.lastname: Ahn
authors.forename: Jae-Gil
authors.initials: JG
authors.lastname: Kim
authors.forename: Hyeong-Kyu
authors.initials: HK
authors.lastname: Lee
mesh_terms: D000972:Antineoplastic Agents, Phytogenic / Q000737:chemistry; D007723:Korea; D009682:Magnetic Resonance Spectroscopy; D008968:Molecular Conformation; D010946:Plants, Medicinal / Q000737:chemistry*; D021241:Spectrometry, Mass, Electrospray Ionization; D013055:Spectrophotometry, Infrared; D014315:Triterpenes / Q000737:chemistry* / Q000302:isolation & purification
chemical_list: D000972:Antineoplastic Agents, Phytogenic; D014315:Triterpenes; C464534:tiarellic acid; C007695:euscaphic acid; C113861:corosolic acid