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title: Diterpenoids and phenanthrenones from the leaves and stems of Strophioblachia fimbricalyx
author: Cheng, Li;  Ji, Kai-long;  Liao, Shang-gao;  ...;  Xu, You-kai
Issued Date: 2016
Abstract: Five new compounds, namely fimbricalyxoids A-D (1-4) and 13-O-methylfimbricalyx B (5), together with five known compounds (6-10) were isolated from the leaves and stems of Strophioblachia fimbricalyx. Fimbricalyxoid A (1), a cleistanthane diterpenoid, possesses a rare 3,20-oxybridge, while fimbricalyxoids C-D (3-4) are the first seco-ring-A pentanorditerpenoids. Their structures and absolute configuration were established based on NMR and MS data and ECD calculation (1). Compounds 1, 6, and 7 exhibited cytotoxicity against five human tumor cell lines with IC50 values in the range of 1.4-8.2 mu M
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Recommended Citation:
Cheng, Li,Ji, Kai-long,Liao, Shang-gao,et al. Diterpenoids And Phenanthrenones From The Leaves And Stems Of Strophioblachia Fimbricalyx[J]. Tetrahedron Letters,2016,57(21):2262-2265.

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