CYCLOHEXENE EPOXIDES, (+)-PANDOXIDE, (+)-BETA-SENEPOXIDE AND (-)-PIPOXIDE, FROM UVARIA-PANDENSIS
CYCLOHEXENE EPOXIDES, (+)-PANDOXIDE, (+)-BETA-SENEPOXIDE AND (-)-PIPOXIDE, FROM UVARIA-PANDENSIS
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DOI:
10.1016/s0031-9422(00)83878-9
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发表时间:
1987-01-01
期刊:
影响因子:
3.8
通讯作者:
ZWANENBURG, B
中科院分区:
文献类型:
--
作者:
NKUNYA, MHH;WEENEN, H;ZWANENBURG, B
The new cyclohexene epoxide (+)-pandoxide along with (+)-.beta.-senepoxide and (-)-pipoxide were isolated from the stembark, roots and leaves of the new Uvaria species U. pandensis. Their structures and stereochemical configurations were determined by spectroscopic methods. The pipoxide has an absolute configuration opposite to the one previously isolated from Uvaria species. The absolute stereochemical configuration of (+)-.beta.-senopoxide was assigned unambigously by an X-ray diffraction analysis.