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Abstract
A new picrotoxane-type sesquiterpene, findlayanin (1), was isolated from Dendrobium findlayanum with crystallinin (2). The structure of compound 1 was established to be (1R,2S,3R,4S,5R,6S,9R)-2,3,11,12-tetrahydroxypicrotoxan-12(15)-lactone by spectroscopic methods.
Acknowledgement
The authors wish to thank the College of Basic Science and Information Engineering, Yunnan Agricultural University, for partial financial support of the research work.