4-(6-aminopurin-9-yl)but-2-yn-1-ol

2-[(6-aminopurin-9-yl)methyl]propane-1,2,3-triol

[(1S,4R)-4-(6-aminopurin-9-yl)cyclopent-2-en-1-yl]methanol

9-(4-chlorobuta-1,2-dienyl)purin-6-amine

1,9-二氢-6H-嘌呤-6-酮7-氧化物