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.
Graduate Institute of Biotechnology, National Pingtung University of Science and Technology, Pingtung, Taiwan.
Chi-I
CI
Chang
Wen-Ching
WC
Chen
Yi-Yuan
YY
Shao
Guey-Ru
GR
Yeh
Ning-Sun
NS
Yang
Wenchang
W
Chiang
Yueh-Hsiung
YH
Kuo
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