title: Tirucallane triterpenoids from Dysoxylum hainanense.
abstract: Four tirucallane derivatives, 3beta,22S-dihydroxy-tirucalla-7,24-dien-23-one, 22,23-epoxy-tirucalla-7-ene-3beta,24,25-triol, 3beta,25-dihydroxy-tirucalla-7,23-diene, 23,26-dihydroxy-tirucalla-7,24-dien-3-one, together with two known triterpenoids, 24,25-epoxy-3beta,23-dihydroxy-7-tirucallene, tirucalla-7,24-diene-3beta,23-diol, were isolated from Dysoxylum hainanense. Their structures were elucidated on the basis of spectroscopic evidence.
authors.affiliation: Laboratory of Phytochemistry, Kunming Institute of Botany, Academia Sinica. Kunming, Yunnan, People's Republic of China.
authors.forename: X D
authors.initials: XD
authors.lastname: Luo
authors.forename: S H
authors.initials: SH
authors.lastname: Wu
authors.forename: Y B
authors.initials: YB
authors.lastname: Ma
authors.forename: D G
authors.initials: DG
authors.lastname: Wu
mesh_terms: D019684:Magnoliopsida / Q000737:chemistry*; D015394:Molecular Structure; D013057:Spectrum Analysis; D014315:Triterpenes / Q000737:chemistry / Q000302:isolation & purification*
chemical_list: D014315:Triterpenes