DITERPENES AND A FLAVONE FROM LEUCAS-NEUFLISEANA

Citation
At. Khalil et al., DITERPENES AND A FLAVONE FROM LEUCAS-NEUFLISEANA, Phytochemistry, 41(6), 1996, pp. 1569-1571
Citations number
21
Categorie Soggetti
Plant Sciences
Journal title
ISSN journal
00319422
Volume
41
Issue
6
Year of publication
1996
Pages
1569 - 1571
Database
ISI
SICI code
0031-9422(1996)41:6<1569:DAAFFL>2.0.ZU;2-2
Abstract
Three labdane-type diterpenes; 3-oxo-marrubiin and a mixture of two re lated C-15 epimeric diterpenes based on 9 alpha,13 alpha,15,16-bisepox y-15-hydroxy-3-oxo-labdan-6 beta,19-olide, in addition to the acylated flavone apigenin 7-O-[6 ''-O-(p-hydroxy-trans-cinnamoyl)glucoside] we re isolated and identified from the aerial parts of Leucas neufliseana . Their structures were established through physical and chemical meth ods in addition to standard spectroscopic techniques. This is the firs t report of the isolation of the two epimeric diterpenes from a natura l source.