title: Cycloartanes, protolimonoids, a pregnane and a new ergostane from Trichilia reticulata.
abstract: The new ergostane steroid ergosta-5,24(24')-diene-3beta,4beta,22R-triol (1), a pregnane, (E)-volkendusin, characterised as the diacetate (3), cycloartanes 4-6 and protolimonoids 7-9 were obtained from the leaves and twigs of Trichilia reticulata.
authors.affiliation: Chemistry Department, University of the West Indies, Mona, Jamaica.
authors.forename: W W
authors.initials: WW
authors.lastname: Harding
authors.forename: H
authors.initials: H
authors.lastname: Jacobs
authors.forename: P A
authors.initials: PA
authors.lastname: Lewis
authors.forename: S
authors.initials: S
authors.lastname: McLean
authors.forename: W F
authors.initials: WF
authors.lastname: Reynolds
mesh_terms: D055598:Chemical Phenomena; D002627:Chemistry, Physical; D002845:Chromatography; D004875:Ergosterol / Q000031:analogs & derivatives / Q000737:chemistry / Q000302:isolation & purification*; D005663:Furans / Q000737:chemistry / Q000302:isolation & purification*; D013058:Mass Spectrometry; D029582:Meliaceae / Q000737:chemistry*; D008968:Molecular Conformation; D015394:Molecular Structure; D019906:Nuclear Magnetic Resonance, Biomolecular; D018515:Plant Leaves / Q000737:chemistry; D018547:Plant Stems / Q000737:chemistry; D010946:Plants, Medicinal / Q000737:chemistry*; D011278:Pregnanes / Q000737:chemistry / Q000302:isolation & purification*; D012503:Saponins / Q000737:chemistry / Q000302:isolation & purification*; D013055:Spectrophotometry, Infrared; D013056:Spectrophotometry, Ultraviolet; D013237:Stereoisomerism; D014315:Triterpenes
chemical_list: D005663:Furans; D011278:Pregnanes; D012503:Saponins; D014315:Triterpenes; C447220:ergosta-5,24(24')-diene-3beta,4beta,22R-triol; C447221:volkendusin diacetate; C085352:cycloartane; D004875:Ergosterol