A new tetranortriterpenoid from the roots of Atalantia buxifolia

@article{Yang2012ANT,
  title={A new tetranortriterpenoid from the roots of Atalantia buxifolia},
  author={Tao Yang and Yanbo Zeng and Zhi-kai Guo and Wen-jian Zuo and Shan‐Shan Ma and Shangxiao Li and Wenli Mei and Hao-Fu Dai},
  journal={Journal of Asian Natural Products Research},
  year={2012},
  volume={14},
  pages={581 - 585}
}
A new tetranortriterpenoid, named 6-deacetyl-severinolide (1), together with six known tetranortriterpenoids severinolide (2), acetyl-isoepiatalantin (3), 7-isovaleroylcycloepiatalantin (4), cycloepiatalantin (5), 7-isovaleroylcycloseverinolide (6), and atalantin (7), was isolated from the ethanol extract of the roots of Atalantia buxifolia collected in Hainan. Their structures were elucidated by spectroscopic methods including 1D and 2D NMR (HMQC, 1H–1H COSY, HMBC, and NOESY). 
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Two new tetranortriterpenoids and 28 known compounds were isolated and characterized from the root bark of Severinia buxifolia collected in Hainan on the basis of spectral evidence including 2D NMR and X-ray techniques. Expand
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Abstract Three new sesquiterpenes were isolated from Severinia buxifolia , and identified as α-santalen-11-one, dihydro-α-santalen-12-one, and 12,13-epoxy-α-santalene, respectively. α-PhotosantalolExpand
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Abstract Leaf extracts of Severinia buxifolia (Poir.) Ten. were found to contain seselin, small amounts of an alkaloid and a new coumarin which was shown by chemical spectroscopic studies to beExpand
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Eight new acridone alkaloids, buxifoliadines-A--H together with nine known acridone compounds, were isolated and characterized from the root bark of Severinia buxifolia which was collected in HainanExpand
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Phytochemical analysis of different organs of the rutaceaeous plant Severinia buxifolia led to the isolation of a new limonoid, a new acridone alkaloid, and a new flavone. Structure elucidation andExpand
Tetranortriterpenoid insect antifeedants from Severinia buxifolia
TLDR
Two new tetranortriterpenoids, severinolide and cyclosever inolide, together with four known compounds, were isolated and characterized from the root bark of Severinia buxifblia and showed significant antifeeding effects against Plutella xylostalla. Expand
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