A New Isoflavone Glycoside from Dalbergia vacciniifolia (Fabaceae)
نویسنده
چکیده
5,5'-Dihydroxy-2',4'-dimethoxy-7-[(6-O-β-d-apiofuranosyl-β-d-glucopyranosyl)-oxy]isoflavone (1) was isolated as the major constituent of Dalbergia vacciniifolia root bark ethanol extract together with the four known compounds 5,7-dihydroxy-2',4',5'-trimethoxyisoflavone (3), 5,7-dihydroxy-2',4'-dimethoxy-isoflavone (4), 5-hydroxy-2',4',7-trimethoxyisoflavone (5) and 7-hydroxy-2',4',5'-trimethoxyisoflavone (6). Identification of compounds was achieved through extensive analysis of 1D and 2D NMR and MS spectroscopy.
منابع مشابه
A new isoflavone glycoside from Ceiba pentandra (L.) Gaertner.
From the 80% EtOH extract of the bark of Ceiba pentandra (L.) Gaertner, a new isoflavone glycoside was isolated along with known isoflavones, vavain and vavain glucoside. The structure was elucidated by spectroscopic analysis as 5-hydroxy-7,4',5'-trimethoxyisoflavone 3'-O-alpha-L-arabinofuranosyl(1-->6)-beta-D-glucopyranoside.
متن کاملBiochemical Alterations Due to Combined Methanolic Extract of Dalbergia Sissoo and Azadirachta Indica on Liver and Kidney of Sprague Dawley Rats
Dalbergia sissoo and Azadirachta indica are commonly known trees of India. They belong to family leguminoseae (fabaceae) and meliaceae respectively. They are broadly used in folk medicine for several diseases. The present study is carried out on biochemical parameters i.e. on content of protein and glycogen with standardized method in liver and kidney of Sprague-dawley rats. Due to combined ext...
متن کاملDNA Barcoding of Malagasy Rosewoods: Towards a Molecular Identification of CITES-Listed Dalbergia Species
Illegal selective logging of tropical timber is of increasing concern worldwide. Madagascar is a biodiversity hotspot and home to some of the world's most sought after tropical timber species. Malagasy rosewoods belong to the genus Dalbergia (Fabaceae), which is highly diverse and has a pantropical distribution, but these timber species are among the most threatened as a consequence of intensiv...
متن کاملEvaluation of Antimicrobial Activity and Qualitative Phytochemical Screening of solvent extracts of Dalbergia melanoxylon (Guill. & Perr.)
Dalbergia melanoxylon Gill. & Perr. known as African Blackwood or Mpingo in Swahili is a flowering plant in the family Fabaceae known to be an economically important tree with high-quality wood and being one of the most expensive timbers in the world (Jenkins et al. 2002, Ball, 2004). D. melanoxylon presently exploited for international trade is the most precious heartwood in the world (Ball, 2...
متن کاملAntimicrobial Activity of Root Extracts of Dalbergia Spinosa Roxb
The different concentrations of benzene, alcoholic and aqueous root extracts of Dalbergia spinosa Roxb. (Fabaceae) have been studied for its anitmicrobial activity against certain gram positive (Staphylococcus aureus), gram negative (Pseudomonas aeruginosa, Klebsiellapneumoniae, Escherichia coli) bacteria and fungi (Candida albicans) using cup plate method. Benzene, alcoholic extracts(50, 75 an...
متن کامل