摘要
Main observation and conclusion Fifteen 5,9-epoxygrayanane diterpenoids(1-15)including fourteen new ones,epoxymicranthols A-N(1-14),were isolated from the leaves extract of Rhododendron micranthum.Their structures were elucidated via extensive spectroscopic methods and ^(13)C NMR-DP4+analysis,and the absolute configurations of 1,3-10,14,and 15 were confirmed by single-crystal X-ray diffraction analysis.
基金
This work was financially supported by the National Natural Science Foundation of China(No.U1703109).
