A New Coumestan from Tephrosia calophylla.
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Accession number;03A0096299
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| Title;A New Coumestan from Tephrosia calophylla. |
| Author;
HARI KISHORE P
(Sri Venkateswara Univ., Tirupati, Ind)
VIJYA BHASKAR REDDY M
(Sri Venkateswara Univ., Tirupati, Ind)
GUNASEKAR D
(Sri Venkateswara Univ., Tirupati, Ind)
MARTHANDA MURTHY M
(Indian Inst. Of Chemical Technol., Hyderabad, Ind)
CAUX C
(Esa, Paris, Fra)
BODO B
(Esa, Paris, Fra)
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Journal Title;Chem Pharm Bull
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Journal Code:G0504A
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ISSN:0009-2363
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VOL.51;NO.2;PAGE.194-196(2003)
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| Figure&Table&Reference;FIG.2, REF.7 |
| Pub. Country;Japan |
| Language;English |
| Abstract;A new coumestan, tephcalostan (1) has been isolated from the whole plant of Tephrosia calophylla BEDD. together with two known flavonoids, 7-O-methylglabranin (2) and kaempferol 3-O-.BETA.-D-glucopyranoside (3). The structure of tephcalostan was elucidated as 5'-(R)-8,9-methylenedioxy-5'-isopropenyl-4',5'-dihydrofurano-[2',3':2,3]coumestan by extensive one-and two-dimensional (1D- and 2D-)-NMR techniques including 1H-1H correlation spectroscopy (COSY), heteronuclear single quantum coherence (HSQC), heteronuclear multiple bond connectivity (HMBC) and nuclear Overhauser enhancement spectroscopy (NOESY) experiments. (author abst.) |
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