title: Lanopropic acid, a novel natural 2,3-secolanostane triterpenoid from Schisandra propinqua var. propinqua.
abstract: A triterpenetricarboxylic acid with a novel 2,3-secolanostane-type framework named lanopropic acid ( 1) was isolated from the aerial parts of Schisandra propinqua var. propinqua. The structure of 1 was elucidated as 2,3-secolanost-9(11),24( Z)-diene-2,3,26-trioic acid on the basis of spectroscopic techniques and X-ray diffraction studies. This is the first report of natural occurrence of 2,3-secolanostane type triterpenoid.
authors.affiliation: State Key Laboratory of Phytochemistry and Plant Resources in West China, Kunming Institute of Botany, Chinese Academy of Sciences, Kunming, P. R. China.
authors.forename: Chun
authors.initials: C
authors.lastname: Lei
authors.forename: Sheng-Xiong
authors.initials: SX
authors.lastname: Huang
authors.forename: Jian-Xin
authors.initials: JX
authors.lastname: Pu
authors.forename: Jin-Ping
authors.initials: JP
authors.lastname: Liu
authors.forename: Guang-Yu
authors.initials: GY
authors.lastname: Yang
authors.forename: Li-Bin
authors.initials: LB
authors.lastname: Yang
authors.forename: Yang
authors.initials: Y
authors.lastname: Lu
authors.forename: Ji-Jun
authors.initials: JJ
authors.lastname: Chen
authors.forename: Yang
authors.initials: Y
authors.lastname: Lu
authors.forename: Wei-Lie
authors.initials: WL
authors.lastname: Xiao
authors.forename: Han-Dong
authors.initials: HD
authors.lastname: Sun
mesh_terms: D000972:Antineoplastic Agents, Phytogenic / Q000302:isolation & purification*; D019073:HT29 Cells; D006801:Humans; D020014:K562 Cells; D032141:Schisandra / Q000737:chemistry*; D014315:Triterpenes / Q000737:chemistry* / Q000302:isolation & purification
chemical_list: D000972:Antineoplastic Agents, Phytogenic; D014315:Triterpenes; C530126:lanopropic acid