4-氨基-N-(6-氨基-2,4-二氧代-1,3-二丙基-1,2,3,4-四氢-5-嘧啶基)苯甲酰胺

1,3-二丙基-8-p-硫化苯基黄嘌呤

8-(3-氧代环戊基)-1,3-二丙基-7H-嘌呤-2,6-二酮

8-(4-aminophenyl)-1,3-dipropyl-7H-purine-2,6-dione

8-(4-methoxyphenyl)-1,3-dipropyl-7H-purine-2,6-dione