8-Morpholinocaffeine

1,3,7-trimethyl-8-morpholin-4-yl-purine-2,6-dione

3,7-Dihydro-8-morpholino-1,3,7-trimethyl-1H-purine-2,6-dione

3,7-Dihydro-1,3,7-trimethyl-8-morpholino-1H-purine-2,6-dione