title: Triterpenoids from Gentiana scabra.
abstract: Five triterpenoids, (20S)-dammara-13(17),24-dien-3-one, (20R)-dammara-13(17),24-dien-3-one, chirat-16-en-3-one, chirat-17(22)-en-3-one and 17beta,21beta-epoxyhopan-3-one, were isolated from the rhizomes and roots of Gentiana scabra together with five known ones, chiratenol, hop-17(21)-en-3-one, hop-17(21)-en-3beta-ol, lupeol and alpha-amyrin. The structures of new compounds were elucidated on the basis of spectroscopic studies.
authors.affiliation: Department of 2nd Analytical Chemistry, Tohoku Pharmaceutical University, 4-4-1 Komatsushima, Aoba-ku, Sendai, 981-8558, Miyagi, Japan.
authors.forename: Rie
authors.initials: R
authors.lastname: Kakuda
authors.forename: Takeyoshi
authors.initials: T
authors.lastname: Iijima
authors.forename: Yasunori
authors.initials: Y
authors.lastname: Yaoita
authors.forename: Koichi
authors.initials: K
authors.lastname: Machida
authors.forename: Masao
authors.initials: M
authors.lastname: Kikuchi
mesh_terms: D029965:Gentianaceae / Q000737:chemistry*; D018517:Plant Roots / Q000737:chemistry; D027343:Rhizome / Q000737:chemistry*; D013057:Spectrum Analysis; D014315:Triterpenes / Q000737:chemistry / Q000302:isolation & purification*
chemical_list: D014315:Triterpenes