title: Four new podocarpane-type trinorditerpenes from the bark of Taiwania cryptomerioides.
abstract: Further studies on the bark of Taiwania cryptomerioides found four new podocarpane derivatives, 1beta,13-dihydroxy-8,11,13-podocarpatriene (1), 14,18-dihydroxy-13-methoxy-8,11,13-podocarpatriene (2), 1beta,14-dihydroxy-13-methoxy-8,11,13-podocarpatriene-2,7-dione (3), and 3beta,14-dihydroxy-13-methoxy-8,11,13-podocarpatrien-7-one (4), together with a known 1beta,13,14-trihydroxy-8,11,13-podocarpatrien-7-one (5). Those structures were elucidated principally from spectral evidence.
authors.affiliation: Department of Chemistry, National Taiwan University, Taipei, Republic of China. yhkuo@ccms.ntu.edu.tw
authors.forename: Yueh-Hsiung
authors.initials: YH
authors.lastname: Kuo
authors.forename: Shih-Chang
authors.initials: SC
authors.lastname: Chien
authors.forename: Shou-Ling
authors.initials: SL
authors.lastname: Huang
mesh_terms: D029779:Cupressaceae / Q000737:chemistry*; D004224:Diterpenes / Q000737:chemistry* / Q000302:isolation & purification*; D004365:Drugs, Chinese Herbal / Q000737:chemistry; D009682:Magnetic Resonance Spectroscopy; D008516:Medicine, Chinese Traditional; D024301:Plant Bark / Q000737:chemistry; D010946:Plants, Medicinal / Q000737:chemistry*; D013624:Taiwan
chemical_list: D004224:Diterpenes; D004365:Drugs, Chinese Herbal