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.
No takes yet. Share an insight, caveat, or question.
Lindsay et al. (1999) studied this question.
Synapse has enriched 5 closely related papers on similar clinical questions. Consider them for comparative context: