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Paper | Regular issue | Vol 29, No. 10, 1989, pp.1923-1927
Published online, 1st January, 1970
DOI: 10.3987/COM-89-5061
Vaccaxanthone, a Novel Xanthone Acid from Saponaria vaccaria

Syed Najam-ul-Hussain Kazmi, Zaheer Ahmed, and Abdul Malik*

*International Centre for Chemical Sciences, H. E. J. Research Institute of Chemistry, University of Karachi, Karachi-75270, Pakistan

Abstract

Vaccaxanthone (1), a novel 7-carboxy-1,3,5,8-tetraoxygenated xanthone has been isolated from Saponaria vaccaria. Its structure has been established from spectroscopic data including uv, ir, high resolution-ms, 1H- and 13C-nmr as 1,8-dihydroxy-3,5-dimethoxyxanthone-7-carboxylic acid.