Five new cadinane-type sesquiterpenes from the heartwood of Chamaecyparis obtusa var. formosana.
Muurola-4,10(14)-dien-3-one (1), 10-O-acetyl-15-oxo-alpha-cadinol (2), 15-hydroxy-alpha-cadinol (3), 4alpha-hydroxy-5beta-ethoxy-epi-cubenol (4), and 4alpha-hydroxy-5beta-acetoxy-epi-cubenol (5), five new bicyclic sesquiterpenes, have been isolated from the heartwood of Chamaecyparis obtusa var. formosana along with the known compounds epi-cubenol, T-cadinol, T-muurolol, delta-cadinol, and alpha-cadinol. The structures of the new constituents were elucidated through chemical and spectral studies.
Kuo
Yueh-Hsiung
YH
Department of Chemistry, National Taiwan University, Taipei, Taiwan, Republic of China. yhkuo@ccms.ntu.edu
Chen
Chia-Hsien
CH
Chien
Shih-Chang
SC
Lin
Yun-Lian
YL
D002851:Chromatography, High Pressure Liquid; D029779:Cupressaceae / Q000737:chemistry*; D013058:Mass Spectrometry; D008968:Molecular Conformation; D015394:Molecular Structure; D019906:Nuclear Magnetic Resonance, Biomolecular; D010946:Plants, Medicinal / Q000737:chemistry*; D012717:Sesquiterpenes / Q000737:chemistry / Q000302:isolation & purification*; D013055:Spectrophotometry, Infrared; D013624:Taiwan; D013729:Terpenes / Q000737:chemistry
D012717:Sesquiterpenes; D013729:Terpenes; C445364:cadinol