Flavones and phenylpropenoids in the surface exudate of Psiadia punctulata
Date
2001-06Author
Jumaa Benard F.
Yenesew Abiy.
Midiwo Jacob O.
Waterman Peter G.
Type
ArticleLanguage
enMetadata
Show full item recordAbstract
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.
URI
http://www.sciencedirect.com/science/article/pii/S0031942201001479http://erepository.uonbi.ac.ke:8080/xmlui/handle/123456789/34994
http://www.ncbi.nlm.nih.gov/pubmed/11394859
Citation
Phytochemistry Volume 57, Issue 4, June 2001, Pages 571–574Publisher
University of Nairobi Department of Chemistry, University of Nairobi