1H-Purine-2,6-dione, 8-((3,4-dihydro-2H-pyran-2-yl)oxy)-3,7-dihydro-1,3,7-trimethyl-(9CI) 73747-34-9 8-((3,4-Dihydro-2H-pyran-2-yl)oxy)caffeine CAFFEINE, 8-((3,4-DIHYDRO-2H-PYRAN-2-YL)OXY)- NSC 106199