Three new natural cyclopentenedione derivatives from Piper carniconnectivum

被引:22
作者
Facundo, VA
Sá, AL
Silva, SAF
Morais, SM
Matos, CRR
Braz Filho, R [1 ]
机构
[1] Univ Fed Rondonia, Dept Quim, BR-78900000 Porto Velho, RO, Brazil
[2] Univ Estadual Ceara, Dept Quim & Fis, BR-60740000 Fortaleza, Ceara, Brazil
[3] Univ Estadual Norte Fluminense, Setor Quim Produtos Naturais, BR-28013600 Campos, RJ, Brazil
关键词
Piper carniconnectivum; Piperaceae; cyclopentenedione derivatives; xanthyletin;
D O I
10.1590/S0103-50532004000100022
中图分类号
O6 [化学];
学科分类号
0703 ;
摘要
Three new natural cyclopentenedione derivatives (1-3) and the known coumarin xanthyletin ( 4) were isolated from the roots of Piper carniconnectivum. The structures were established by spectroscopic data, mainly 1D and 2D NMR and EIMS.
引用
收藏
页码:140 / 145
页数:6
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