Oppositin and 5-O-methylhoslundin, pyrone-substituted flavonoids of Hoslundia opposita

Ngadjui, B. T., Ayafor, J. F., Sondengam, B. L., Connolly, J. D., Rycroft, D. S. and Tillequin, F. (1993) Oppositin and 5-O-methylhoslundin, pyrone-substituted flavonoids of Hoslundia opposita. Phytochemistry, 32(5), pp. 1313-1315. (doi:10.1016/S0031-9422(00)95112-4)

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Abstract

The methanolic extract of the twigs of Hoslundia opposita afforded two new pyrone-substituted flavonoids oppositin and 5-O-methylhoslundin, in addition to the known flavonoids tectochrysin, hoslunddiol and hoslundin. Oppositin has its 6-C-pyrone substituent attached via a 6,6″-link in contrast to the 6,5″-link in hoslundin and is a likely biogenetic precursor of hoslundin.

Item Type:Articles
Keywords:6-C-pyrone-substituted 5,7-dimethoxyflavones, secondary metabolites, natural product chemistry.
Status:Published
Refereed:Yes
Glasgow Author(s) Enlighten ID:Connolly, Professor Joseph and Rycroft, Dr David
Authors: Ngadjui, B. T., Ayafor, J. F., Sondengam, B. L., Connolly, J. D., Rycroft, D. S., and Tillequin, F.
Subjects:Q Science > QD Chemistry
College/School:College of Science and Engineering > School of Chemistry
Journal Name:Phytochemistry
Publisher:Pergamon Press Ltd
ISSN:0031-9422
ISSN (Online):1873-3700

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