6-Methoxy-7-methyl-8-oxoguanine, an Unusual Purine from the Ascidian Symplegma rubra

Journal of Natural Products
1999.0

Abstract

A new purine derivative, 6-methoxy-7-methyl-8-oxoguanine (1), along with 8-oxoadenine (2) and the human metabolite 3-methylxanthine (3), has been isolated from the ascidian Symplegma rubra collected on the southeastern coastline of Brazil. The structures of the three purines were established by analysis of spectroscopic data.

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