N(2)-乙基鸟嘌呤

6-氯-2-甲硫基-7H-嘌呤

2-二甲基氨基-6-羟基嘌呤

6-羟基-2-甲基氨基嘌呤

N,N-dimethyl-2-methylsulfanyl-5H-purin-6-amine