Phytochemical Investigations of the Stem Bark of Senna Floribunda and Senna Didymobotrya
| dc.contributor.advisor | Alemayehu, Gizachew (PhD) | |
| dc.contributor.author | Adane, Legesse | |
| dc.date.accessioned | 2018-06-20T11:35:21Z | |
| dc.date.accessioned | 2023-11-09T16:17:40Z | |
| dc.date.available | 2018-06-20T11:35:21Z | |
| dc.date.available | 2023-11-09T16:17:40Z | |
| dc.date.issued | 1999-08 | |
| dc.description.abstract | Anthraquinones and a naphthoquinone have been isolated and characterized from the stem barks of S. jloribllllda and S. didymobofJya. The CH2CI2:MeOH (1:1) extract of the stem bark of S. jloribllllda yielded four bianthraquinones: floribundone-l (43), 5,7'-physcion-fallacinol (53), 5,7'-physcionphyscion anthrone (83), 5,5'-physcion-physcion anthrone (84) along with three common anthraquinones: physcion, chrysophanol and emodin. The isolation of 5,7'-Physcionphyscion anthrone and 5,5'-physcion-physcion anthrone is repOlied here for the first time. The CH2CI2:MeOH (1: I) extract of S. didymoboflya bark yielded four compounds: 2- methoxystypandrone (82), 10-( chrysophanol-7'-yl)-1 0-hydroxychrysophanol-9-anthrone (70), fallacinol (6) and 1O,lO'-bichrysophanol (59) along with the three common anthraquinones: physcion, chrysophanol and emodin. The elucidation of the structures was based on spectroscopic data and in some cases by direct TLC comparison with authentic samples. | en_US |
| dc.identifier.uri | http://etd.aau.edu.et/handle/12345678/2285 | |
| dc.language.iso | en | en_US |
| dc.publisher | Addis Ababa Universty | en_US |
| dc.subject | Senna Floribunda and Senna Didymobotrya | en_US |
| dc.title | Phytochemical Investigations of the Stem Bark of Senna Floribunda and Senna Didymobotrya | en_US |
| dc.type | Thesis | en_US |