5427-20-3
9-ethyl-3H-purine-6-thione
+
77-78-1
硫酸二甲酯
→
7252-00-8
9-ethyl-6-methylsulfanylpurine
98140-03-5
6-氯-N4-乙基-4,5-嘧啶二胺
5462-86-2
6-Chloro-9-ethylpurine