Arylketones and thiomorpholides in the synthesis of 8-substituted-xanthines.
D007659:Ketones; D013806:Theophylline / Q000031:analogs & derivatives; D014970:Xanthines
D007659:Ketones; D014970:Xanthines; D013806:Theophylline
KETONES; THEOPHYLLINE/derivatives