Two new lactones, fortunolides A ( 1 ) and B ( 2 ), together with three known compounds, hainanolidol, 32 acetylcephalotaxine, and wilsonine, were isolated from the needles and stem of Cephalotaxus fortunei . Their structures were elucidated on the basis of MS and NMR data.
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Du et al. (1999) studied this question.