title: Two new cucurbitane-type triterpenoid saponins isolated from ethyl acetate extract of Citrullus colocynthis fruit.
abstract: Two new cucurbitacins I (1 and 2), together with eight known compounds (3-10), were isolated from the ethyl acetate extract of the fruit of Citrullus colocynthis. Compounds 3, 5-9 were isolated from C. colocynthis for the first time. The structures of new compounds were determined primarily from IR, HR-MS, 1D-, and 2D-NMR analysis.
authors.affiliation: a School of Chemistry and Chemical Engineering /Key Laboratory for Green Processing of Chemical Engineering of Xinjiang Bingtuan, Shihezi University , Shihezi 832003 , China.
authors.forename: Fei
authors.initials: F
authors.lastname: Song
authors.forename: Bin
authors.initials: B
authors.lastname: Dai
authors.forename: Hai-Yan
authors.initials: HY
authors.lastname: Zhang
authors.forename: Jian-Wei
authors.initials: JW
authors.lastname: Xie
authors.forename: Cheng-Zhi
authors.initials: CZ
authors.lastname: Gu
authors.forename: Jie
authors.initials: J
authors.lastname: Zhang
mesh_terms: D065986:Citrullus colocynthis / Q000737:chemistry*; D054728:Cucurbitacins / Q000737:chemistry / Q000302:isolation & purification*; D004365:Drugs, Chinese Herbal / Q000737:chemistry / Q000302:isolation & purification*; D005638:Fruit / Q000737:chemistry; D015394:Molecular Structure; D019906:Nuclear Magnetic Resonance, Biomolecular; D012503:Saponins / Q000737:chemistry* / Q000302:isolation & purification*
chemical_list: C000602260:16-(2-prop-1-en-2-yl)-25-O-acetyl-2-O-beta-D-glucopyranosyl cucurbitacin I; C000602259:16-(2-prop-1-enyl)-2-O-beta-D-glucopyranosyl cucurbitacin I; D004365:Drugs, Chinese Herbal; D012503:Saponins; D054728:Cucurbitacins
keywords: Citrullus colocynthis; Cucurbitaceae; cucurbitacin; cucurbitane-type triterpenoids