. "8-Methoxymethyl-3-isobutyl-1-methylxanthine" . . . "8-(Methoxymethyl)-1-methyl-3-(2-methylpropyl)-7H-purine-2,6-dione" . . . . . . . . . . "8-Methoxymethyl-3-isobutyl-1-methylxanthine" . . . . "8-Methoxymethyl-IBMX; MMPX" . .