50-00-0
甲醛
+
58-55-9
茶碱
→
31542-43-5
7-(hydroxymethyl)-1,3-dimethylpurine-2,6-dione
31542-42-4
7-(Chloromethyl)-1,3-dimethyl-3,7-dihydro-1H-purine-2,6-dione