A new labdane-type diterpene from the bark of Juniperus chinensis Linn.
From the bark of Juniperus chinensis Linn., a new labdane-type diterpene, methyl 14,15-dihydroxy-8(17),12E-labdadien-19-oate (1a), together with nine known compounds, trans-communic acid, cis-communic acid, 15,16-bisnor-13-oxo-8(17),11E-labdadien-19-oic acid, sandaracopimaric acid, 7-oxosandaracopimaric acid, sugiol, 7-oxototarol, alpha-cedrol and beta-sitosteryl-1-O-beta-glucopyranoside were isolated. The structures of those compounds were elucidated based on spectral analysis and chemical evidences.
Chang
Chi-I
CI
Graduate Institute of Biotechnology, National Pingtung University of Science and Technology, Pingtung, Taiwan.
Chen
Wen-Ching
WC
Shao
Yi-Yuan
YY
Yeh
Guey-Ru
GR
Yang
Ning-Sun
NS
Chiang
Wenchang
W
Kuo
Yueh-Hsiung
YH
D004224:Diterpenes / Q000737:chemistry* / Q000302:isolation & purification; D018653:Juniperus / Q000737:chemistry*; D009682:Magnetic Resonance Spectroscopy; D015394:Molecular Structure; D024301:Plant Bark / Q000737:chemistry*
D004224:Diterpenes; C461919:communic acid; C433017:labdane; C501333:sugiol; C082072:sandaracopimaric acid