dc.contributor.author | Jumaa Benard F. | |
dc.contributor.author | Yenesew Abiy. | |
dc.contributor.author | Midiwo Jacob O. | |
dc.contributor.author | Waterman Peter G. | |
dc.date.accessioned | 2013-06-17T13:08:50Z | |
dc.date.available | 2013-06-17T13:08:50Z | |
dc.date.issued | 2001-06 | |
dc.identifier.citation | Phytochemistry Volume 57, Issue 4, June 2001, Pages 571–574 | en |
dc.identifier.uri | http://www.sciencedirect.com/science/article/pii/S0031942201001479 | |
dc.identifier.uri | http://erepository.uonbi.ac.ke:8080/xmlui/handle/123456789/34994 | |
dc.identifier.uri | http://www.ncbi.nlm.nih.gov/pubmed/11394859 | |
dc.description.abstract | Three flavones, 5,7-dihydroxy-2′,3′,4′,5′-tetramethoxyflavone, 5,4′-dihydroxy-7,2′,3′,5′-tetramethoxyflavone, and 5,7,4′-trihydroxy-2′,3′,5′ -trimethoxyflavone were isolated from the leaf exudate of Psiadia punctulata, together with the previously reported 5-hydroxy-7,2′,3′,4′,5′-pentamethoxyflavone and 5,7,3′-trihydroxy-2′,4′,5′-trimethoxyflavone. The two phenylpropenoids, Z-docosyl-p-coumarate and E-docosyl-p-coumarate were also isolated. The structures were determined on the basis of spectroscopic evidence.
Three flavones including 1, along with a docosyl coumarate were isolated from the aerial exudate of Psiadia punctulata. The structures were established on the basis of spectroscopic information and comparison with published data. | en |
dc.language.iso | en | en |
dc.publisher | University of Nairobi | en |
dc.subject | Psiadia punctulata;Compositae;Surface exudates;Flavones;Phenylpropenoids;5,7-Dihydroxy-2′,3′,4′,5′-tetramethoxyflavone;5,4′-Dihydroxy-7,2′,3′,5′-tetramethoxyflavone;5,7,4′-Trihydroxy-2′,3′,5′-trimethoxyflavone;Z-Docosyl-p-coumarate | en |
dc.title | Flavones and phenylpropenoids in the surface exudate of Psiadia punctulata | en |
dc.type | Article | en |
local.publisher | Department of Chemistry, University of Nairobi | en |