title: Three novel 5(6-->7)abeoabietane-type diterpenes from the bark of Taiwania cryptomerioides.
abstract: Three new 5(6-->7)abeoabietane diterpenes with the uncommon skeleton of fused 6-5-6 rings were isolated from the bark of Taiwania cryptomerioides designated as taiwaniaquinone F (8), taiwaniaquinol C (9) and taiwaniaquinol D (10). Meanwhile, two known compounds, taiwaniaquinones A (1) and D (4), were also obtained. Their structures were determined principally from spectral evidence.
authors.affiliation: Shu Zen College of Medicine & Management, Kaohsiung, Taiwan, ROC.
authors.forename: Chi-I
authors.initials: CI
authors.lastname: Chang
authors.forename: Shih-Chang
authors.initials: SC
authors.lastname: Chien
authors.forename: Shue-Mei
authors.initials: SM
authors.lastname: Lee
authors.forename: Yueh-Hsiung
authors.initials: YH
authors.lastname: Kuo
mesh_terms: D045784:Abietanes / Q000737:chemistry* / Q000302:isolation & purification*; D029779:Cupressaceae / Q000737:chemistry; D024301:Plant Bark / Q000737:chemistry; D010936:Plant Extracts / Q000737:chemistry / Q000302:isolation & purification
chemical_list: D045784:Abietanes; D010936:Plant Extracts