3-(6-Amino-9H-purin-9-yl)propanoic acid
2-((6-Amino-9H-purin-8-yl)thio)butanoic acid
4-(2-((2-Amino-6-oxo-5,6-dihydro-1H-purin-9(4H)-yl)methoxy)ethoxy)-4-oxobutanoic acid
2-((6-Amino-9-(2-phenoxyethyl)-9H-purin-8-yl)thio)propanoic acid
3-((6-Amino-9H-purin-8-yl)thio)propanoic acid
2-((6-Amino-9-benzyl-9H-purin-8-yl)thio)propanoic acid
3-Methoxy-4-(1H-purin-8-yl)benzoic acid
2-(3,7-Dimethyl-2,6-dioxo-2,3,6,7-tetrahydro-1H-purin-1-yl)acetic acid
2-(9-(4-Methoxyphenyl)-6-oxo-6,9-dihydro-1H-purin-1-yl)acetic acid
3-(6-Amino-9H-purin-9-yl)-2-hydroxypropanoic acid
1H-Purine-8-carboxylic acid
2-((6-Amino-9H-purin-8-yl)thio)acetic acid
2-(2-Amino-6-chloro-9H-purin-9-yl)acetic acid
2-((6-Amino-3-benzyl-3H-purin-8-yl)thio)acetic acid
(S)-2-((6-Oxo-6,7-dihydro-1H-purin-2-yl)amino)propanoic acid
2-(6-Amino-8-mercapto-9H-purin-9-yl)acetic acid
4-(3,7-Dimethyl-2,6-dioxo-2,3,6,7-tetrahydro-1H-purin-1-yl)butanoic acid
4-(5-(6-(Benzylthio)-9H-purin-9-yl)pentanamido)-2-hydroxybenzoic acid
1,3,7-Trimethyl-2,6-dioxo-2,3,6,7-tetrahydro-1H-purine-8-carboxylic acid
2-(6-Amino-9H-purin-9-yl)acetic acid
