1,3-diethyl-7-methyl-8-[(E)-2-(3,4,5-trimethoxyphenyl)ethenyl]purine-2,6-dione

1,3-二乙基-8-苯基黄嘌呤

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

1,3-diethyl-8-[(E)-2-(2,3,4-trimethoxyphenyl)ethenyl]-7H-purine-2,6-dione

8-[(E)-2-(2,4-二甲氧基苯基)乙烯基]-1,3-二乙基-7H-嘌呤-2,6-二酮