title: New diterpenes from the heartwood of Chamaecyparis obtusa var. formosana.
abstract: An abietane diterpene, 11,14-dihydroxy-8,11,13-abietatrien-7-one (1); a seco-abietane diterpene, obtuanhydride (2); and an isopimarane diterpene, 18,19-O-isopropylidene-18, 19-dihydroxyisopimara-8(14),15-diene (3) were isolated from the heartwood of Chamaecyparis obtusa var. formosana. The structures of these new compounds were elucidated by spectroscopic methods.
authors.affiliation: Department of Chemistry, National Taiwan University, Taipei, Taiwan, Republic of China.
authors.forename: Y H
authors.initials: YH
authors.lastname: Kuo
authors.forename: C H
authors.initials: CH
authors.lastname: Chen
authors.forename: S L
authors.initials: SL
authors.lastname: Huang
mesh_terms: D045784:Abietanes; D002240:Carbohydrate Sequence; D002681:China; D004224:Diterpenes / Q000737:chemistry / Q000302:isolation & purification*; D009682:Magnetic Resonance Spectroscopy; D013058:Mass Spectrometry; D008969:Molecular Sequence Data; D010946:Plants, Medicinal / Q000737:chemistry*; D013055:Spectrophotometry, Infrared; D013056:Spectrophotometry, Ultraviolet; D014934:Wood
chemical_list: C113231:11,14-dihydroxy-8,11,13-abietatrien-7-one; C113232:18,19-O-isopropylidene-18,19-dihydroxyisopimara-8(14),15-diene; D045784:Abietanes; D004224:Diterpenes; C113230:obtuanhydride