Xanthones of Garcinia cowa

Pornpipat na Pattalung; Weera Thongtheeraparp; Pichaet Wiriyachitra; Walter C. Taylor

doi:10.1055/s-2006-959502

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Planta Med 1994; 60(4): 365-368
DOI: 10.1055/s-2006-959502

Papers

Xanthones of Garcinia cowa

Pornpipat na Pattalung¹ , Weera Thongtheeraparp¹ , Pichaet Wiriyachitra¹ , Walter C. Taylor²

¹Research Centre for Natural Products, Faculty of Pharmacy, Chiang Mai University, Chiang Mai 50002, Thailand
²Department of Organic Chemistry, University of Sydney, New South Wales 20006, Australia

Further Information

Publication History

1993

1994

Publication Date:
04 January 2007 (online)

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Abstract

Five xanthones have been isolated from Garcinia cowa Roxb. (Guttiferae): cowanin (1), cowanol (2), cowaxanthone (3), l,3,6-trihydroxy-7-methoxy-2,5-bis(3-methyl-2-butenyl)xanthone (4), and norcowanin (5). The structures were assigned by spectroscopic studies. Xanthones 2 and 3 showed moderate antimicrobial activity against Staphylococcus aureus.

Key words

Garcinia cowa Roxb. - Guttiferae - prenylated xanthones - cowanin - cowanol - cowaxanthone - norcowanin - antimicrobial activity

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