Two New Abietane Diterpenoids from the Stems of Clerodendrum kaichianum P. S. Hsu |
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| Authors: | Mingfeng Xu Lianqing Shen Kuiwu Wang Qizhen Du |
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| Affiliation: | 1. College of Food Science and Biotechnology Engineering, Zhejiang Gongshang University, Hangzhou 310035, P.?R. China, (phone: +86‐571‐88071024‐7575;2. fax: +86‐571‐88071024‐7575) |
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| Abstract: | Two new abietane diterpenoids, named 17‐hydroxyteuvincenone G ( 1 ) and 17‐hydroxyteuvincen‐5(6)‐enone G ( 2 ), together with four known diterpenoids, were isolated from the stems of Clerodendrum kaichianum P. S. Hsu . Their structures were elucidated by extensive NMR and MS analyses, and by comparison with literature data. The new compounds showed significant cytotoxicities against the HL‐60 and A‐549 tumor cell lines. |
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| Keywords: | Clerodendrum kaichianum Abietane diterpenoids Diterpenoids Cytotoxic activity |
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