542-69-8
碘丁烷
→
1021-65-4
7-butyl-1,3-dimethylpurine-2,6-dione
109-65-9
正溴丁烷
+
57533-87-6
3,7-dihydro-1,3-dimethyl-1H-purine-2,6-dione, potassium salt