8-[2-[4-[bis(4-fluorophenyl)methyl]piperidin-1-yl]ethyl]-1-methyl-3-(2-methylpropyl)-7H-purine-2,6-dione

8-甲氧基甲基-3-异丁酰-1-甲基黄嘌呤

7-(1,3-dioxolan-2-ylmethyl)-1-methyl-3-(2-methylpropyl)purine-2,6-dione

3-异丁基-1-甲基黄嘌呤

4,5-二氨基-3-异丁基-1-甲基嘧啶-2,6-二酮