1-(6-hydroxyhexyl)-3,7-dimethylpurine-2,6-dione

bromohexyltheobromine

1-(2-chloroethyl)-3,7-dimethylpurine-2,6-dione

3-(3,7-二甲基-2,6-二氧代-嘌呤-1-基)丙酸

1-hex-5-enyl-3,7-dimethylpurine-2,6-dione