1-Methyl anthraquinones and their biogenetic precursors from Stereospermum personatum
U Sampath Kumar1, P Aparna, R Jagadeeshwar Rao
1Natural Products Laboratory, Division of Organic Chemistry-1, Hyderabad-500 007, India.
Abstract:
Two novel 1(17)-methyl anthraquinones, sterequinone-A and -D, their biogenetic precursors sterequinone-B, -C, and a new naphthoquinone sterequinone-E along with a known naphthoquinone, sterekunthal-B, have been isolated from the petroleum ether extract of stem bark of Stereospermum personatum. Their structures were established using spectroscopic methods.
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