A Novel Norclerodane Diterpenoid from the Roots of Croton crassifolius

作者:Zhang, Zhan-Xin; Li, Hui-Hong; Fan, Gai-Xia; Li, Zheng-Yu; Dong, Le-Le; Li, Hong-Yu*; Fei, Dong-Qing
来源:Natural Product Communications, 2015, 10(11): 1917-1918.
DOI:10.1177/1934578x1501001128

摘要

A chemical investigation of Croton crassifolius afforded a novel norclerodane diterpenoid (1) with an unprecedented six-membered oxygen ring between C-1 and C-12, together with three known compounds. The structure of the new compound was elucidated based on spectroscopic (IR, ID, and 2D NMR) and HR-ESI-MS techniques. This report describes the first example of a natural norclerodane with a 4H-chromene ring system.