8-[(1E)-2-(3,4-二甲氧基苯基)乙烯基]-1,3-二乙基-3,9-二氢-1H-嘌呤-2,6-二酮
8-[(1E)-2-(3,4-二甲氧基苯基)乙烯基]-1,3-二乙基-3,9-二氢-1H-嘌呤-2,6-二酮
8-[(1E)-2-(3,4-Dimethoxyphenyl)ethenyl]-1,3-diethyl-3,9-dihydro-1H-purine-2,6-dione
8-[(1E)-2-(3,4-Dimethoxyphenyl)ethenyl]-1,3-diethyl-3,9-dihydro-1H-purine-2,6-dione;(E)-8-[2-(3,4-diMethoxyphenyl)vinyl)-1,3-diethyl-3,7-dihydropurine-2,6-dione
