A Binaphthoquinone from Diospyros greeniwayi

Lupeol, diosindigo A, 7-methyljuglone and a novel binaphthoquinone, 5,5′-dihydroxy-2,7′-dimethyl-3,8′-binaphthalene-1,1′,4,4′-tetrone, which we have named as habibone, were isolated from the root bark of Diospyros greeniwayi. This is the second example of a dimer derived from plumbagin and 7-methylj...

Full description

Saved in:
Bibliographic Details
Published in:Phytochemistry (Oxford) 1998-12, Vol.49 (8), p.2501-2503
Main Authors: Khan, Rafiullah M., Rwekika, Emil
Format: Article
Language:English
Subjects:
7-methyljuglone
bark
Biological and medical sciences
chemical constituents of plants
Chemical constitution
chemical structure
Diospyros
Diospyros greeniwayi
Ebenaceae
Fundamental and applied biological sciences. Psychology
habibone, lupeol, diosindigo A
naphthoquinone
nuclear magnetic resonance spectroscopy
Plant physiology and development
roots
spectral analysis
Citations: Items that this one cites
Items that cite this one
Online Access:Get full text
Tags: Add Tag
No Tags, Be the first to tag this record!
Description
Summary:Lupeol, diosindigo A, 7-methyljuglone and a novel binaphthoquinone, 5,5′-dihydroxy-2,7′-dimethyl-3,8′-binaphthalene-1,1′,4,4′-tetrone, which we have named as habibone, were isolated from the root bark of Diospyros greeniwayi. This is the second example of a dimer derived from plumbagin and 7-methyljuglone. Its structure has been elucidated on the basis of its spectral data mainly, 1H and 13C NMR. Diosindigo A and 7-methyljuglone were also detected in the stem bark of the plant.
ISSN:0031-9422
1873-3700
DOI:10.1016/S0031-9422(98)00294-5