title: Di- and triterpenoids from Tripterygium wilfordii.
abstract: The ethanol extract of the dried root bark of Tripterygium wilfordii Hook. f. afforded one new triterpene: 24, 29-dinor-D:A-friedoolean-4-en-2 beta, 6 alpha, 22 beta-trihydroxy-3, 21-dione, 6 alpha-hydroxy triptocalline 1; one new diterpenoid: 11, 16-dihydroxy-14-methoxy-18 (4-->3) abeo-abieta-3, 8, 11, 13-tetraene-18-oic acid, 16-hydroxy triptobenzene H 2; and one new diterpenoid alkaloid, triptotin J 3. Their structures were established on the basis of spectroscopic studies.
authors.affiliation: Shanghai Institute of Materia Medica, Chinese Academy of Sciences, 294 Taiyuan Road, Shanghai 200031, P.R. China.
authors.forename: G
authors.initials: G
authors.lastname: Yang
authors.forename: H
authors.initials: H
authors.lastname: Feng
authors.forename: Y
authors.initials: Y
authors.lastname: Li
mesh_terms: D045784:Abietanes; D000470:Alkaloids / Q000737:chemistry; D004224:Diterpenes / Q000737:chemistry / Q000302:isolation & purification*; D004365:Drugs, Chinese Herbal / Q000737:chemistry*; D015394:Molecular Structure; D019906:Nuclear Magnetic Resonance, Biomolecular; D024301:Plant Bark / Q000737:chemistry; D018517:Plant Roots / Q000737:chemistry; D010946:Plants, Medicinal / Q000737:chemistry; D013055:Spectrophotometry, Infrared; D013237:Stereoisomerism; D029757:Tripterygium / Q000737:chemistry*; D014315:Triterpenes / Q000737:chemistry / Q000302:isolation & purification*
chemical_list: C445133:11,16-dihydroxy-14-methoxy-18 (4-3)abeo-abieta-3,8,11,13-tetraene-18-oic acid, 16-hydroxy triptobenzene H 2; C445132:24,29-dinor-D-A-friedoolean-4-en-2beta,6alpha,22beta-trihydroxy-3, 21-dione, 6 alpha-hydroxytriptocalline; D045784:Abietanes; D000470:Alkaloids; D004224:Diterpenes; D004365:Drugs, Chinese Herbal; D014315:Triterpenes; C445131:triptotin J