Structure Identification: |
Nat Prod Commun. 2010 May;5(5):747-50. | A new bianthracene C-arabinopyranoside from Senna septemtrionalis.[Pubmed: 20521540 ] |
METHODS AND RESULTS:
Chrysophanol, physcion, emodin, Floribundone 1, 5,7'-physcion-fallacinol, and the novel 5,7'-physcion-physcion-10'-C-alpha-arabinopyranoside were isolated from the stem bark of Senna septemtrionalis. The structures of these secondary metabolites were determined on the basis of spectroscopic analysis, especially from NMR spectra in conjunction with COSY, HMQC, HMBC and TOCSY. | Phytochemistry.1994 Jan;35(2):465–468. | Anthraquinones from Senna multiglandulosa.[Reference: WebLink] |
METHODS AND RESULTS:
Emodin and four bianthraquinones: Floribundone 1, torosanin-9′,10′-quinone, anhydrophlegmacin and a new bianthraquinone containing a 1,4-quinone moiety, 9-(physcion-7′-yl)-5,10-dihydroxy-2-methoxy-7-methyl-1,4-anthraquinone, are reported from Senna multiglandulosa. The compounds are identified on the basis of their colour reactions and spectroscopic data. A bianthraquinone structure containing a 1,4-quinone moiety is reported for the first time. |
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