Cephalotane-Type Norditerpenoids from Cephalotaxus fortunei var. alpina
Cephalotane-Type Norditerpenoids from Cephalotaxus fortunei var. alpina
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来自 Cephalotaxus Fortunei var. 的三尖杉烷型降萜类化合物。
DOI:
10.1002/cjoc.202100913
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发表时间:
2022
影响因子:
5.4
通讯作者:
Yue Jianmin
中科院分区:
文献类型:
--
作者:
Ge Zhanpeng;Zhou Bin;Zimbres Flavia M;Cassera Maria B;Zhao Jinxin;Yue Jianmin
A chemical investigation of the 95% EtOH extract of the seeds of Cephalotaxus fortunei var. alpina led to the isolation of nine new cephalotane-type norditerpenoids, ceforalides A—I (1—9), and two known analogues (10 and 11). Compounds 1—8 belong to a rare class of A-ring-contracted cephalotane-type norditerpenoids, of which compound 8 incorporates a unique tetrasubstituted 2,5-cyclohexadienone A-ring. Compound 9 is a rare 13,14-seco-17-nor-cephalotane-type diterpenoid. Their structures were determined based on NMR, HRESIMS, ECD, and X-ray diffraction analysis. Biological tests revealed compounds 10 and 11 displayed moderate antimalarial activity.