A New Kaurane Diterpene from the Seeds of Vernonia anthelmintica
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A new kaurane diterpene, 16α,17-acetonide-3α-hydroxykauran (1), and four known octadecenoic acid derivatives,12,13,17-trihydroxy-9(Z)-octadecenoic acid methyl ester (2), 12,13,17-trihydroxy-9(Z)-octadecenoic acid (3), tianshic acid (4), and 1,3-divernolin (5), were isolated from the seeds of Vernonia anthelmintica. Their structures were elucidated based on extensive spectroscopic analysis.
KeywordsVernonia anthelmintica diterpene octadecenoic acid derivatives
This work was financially supported by the Key Research and Development Project of the Xinjiang Autonomous Region (No. 2016B03038-3) and West Light Foundation of The Chinese Academy of Science (No. 2016-QNXZ-B-1).
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