title: [Studies on chemical constituents in bulbs of Bolbostemma paniculatum].
abstract: OBJECTIVE
  To investigate the chemical constituents of the bulbs of Bolbostemma panicultum.
  
  
  METHODS
  The compounds were isolated by column chromatography on silica gel, C18, Sephadex LH-20 separately and their structures were elucidated by chemical and spectroscopic technologies.
  
  
  RESULTS
  Eight compounds were isolated and identified as maltol(I), emodin(II), cucurbitacin B(III), cucurbitacin E(IV), stigmasta-7, 22, 25-triene-3-ol(V), stigmasta-7, 22, 25-triene-3-nonadecanoic acid ester(VI), stigmasta-7, 22, 25-triene-3-O-beta-D-glucopyranoside(VII), stigmasta-7, 22, 25-triene-3-O-beta-D-(6'-palmitoyl) glucopyranoside(VIII).
  
  
  CONCLUSIONS
  I-VIII were obtained from this plant for the first time; VI and VIII are new compounds.
authors.affiliation: College of Pharmacy, Second Military Medical University, Shanghai 200433, China.
authors.forename: Wen-yong
authors.initials: WY
authors.lastname: Liu
authors.forename: Wei-guang
authors.initials: WG
authors.lastname: Chen
authors.forename: Wei-dong
authors.initials: WD
authors.lastname: Zhang
authors.forename: Hai-sheng
authors.initials: HS
authors.lastname: Chen
authors.forename: Zheng-bing
authors.initials: ZB
authors.lastname: Gu
authors.forename: Ting-zhao
authors.initials: TZ
authors.lastname: Li
mesh_terms: D019662:Cucurbitaceae / Q000737:chemistry*; D004642:Emodin / Q000737:chemistry / Q000302:isolation & purification; D015394:Molecular Structure; D018517:Plant Roots / Q000737:chemistry; D010946:Plants, Medicinal / Q000737:chemistry*; D012503:Saponins / Q000737:chemistry / Q000302:isolation & purification*; D013265:Stigmasterol / Q000031:analogs & derivatives* / Q000737:chemistry / Q000302:isolation & purification*; D014315:Triterpenes / Q000737:chemistry / Q000302:isolation & purification
chemical_list: D012503:Saponins; D014315:Triterpenes; C500370:stigmasta-7,22,25-triene-3-O-(6'-palmitoyl)glucopyranoside; C500369:stigmasta-7,22,25-triene-3-nonadecanoic acid ester; C041246:cucurbitacin B; D013265:Stigmasterol; D004642:Emodin