title: Siraitic acid F, a new nor-cucurbitacin with novel skeleton, from the roots of Siraitia grosvenorii.
abstract: A new cucurbitane triterpene, siraitic acid F (1), has been isolated from the roots of Siraitia grosvenorii (Swingle) C. Jeffrey, and its structure has been elucidated as 29-nor-4,24-diene-3,11-dioxo-19-hydroxy-6,19-cyclocucurbitane-26-oic acid on the basis of spectroscopic evidences, including a series of 2D NMR analyses.
authors.affiliation: Institute of Medical Plant Development, Chinese Academy of Medical Sciences & Peking Union Medical College, Beijing, China.
authors.forename: Jian-Yong
authors.initials: JY
authors.lastname: Si
authors.forename: Di-Hua
authors.initials: DH
authors.lastname: Chen
authors.forename: Guan-Zhong
authors.initials: GZ
authors.lastname: Tu
mesh_terms: D019662:Cucurbitaceae / Q000737:chemistry*; D009682:Magnetic Resonance Spectroscopy; D018517:Plant Roots / Q000737:chemistry*; D014315:Triterpenes / Q000737:chemistry / Q000302:isolation & purification*
chemical_list: D014315:Triterpenes; C497267:siraitic acid F