6-chloro-N,9-bis(trimethylsilyl)purin-2-amine

6-chloro-9-trimethylsilylpurin-2-amine

7-Trimethylsilyl-2-amino-6-chlorpurin

6-丁氧基-7H-嘌呤-2-胺

9-benzylpurine-2,6-diamine