N-Propyl-6-[[(propylamino)carbonyl]amino]-9H-purine-9-carboxamide

N-Propyl-6-[[(propylamino)carbonyl]amino]-9H-purine-9-carboxamide

N-Isopropyl-6-[[(isopropylamino)carbonyl]amino]-9H-Purine-9-carboxamide

N-Isopropyl-6-[[(isopropylamino)carbonyl]amino]-9H-Purine-9-carboxamide

6-Amino-N-cyclohexyl-9H-purine-9-carboxamide

6-Amino-N-cyclohexyl-9H-purine-9-carboxamide

6-Amino-N-isopropyl-9H-purine-9-carboxamide

6-Amino-N-isopropyl-9H-purine-9-carboxamide

6-Amino-N-butyl-9H-purine-9-carboxamide

6-Amino-N-butyl-9H-purine-9-carboxamide

6-Amino-N-ethyl-9H-purine-9-carboxamide

6-Amino-N-ethyl-9H-purine-9-carboxamide

6-Amino-N-neopentyl-9H-purine-9-carboxamide

6-Amino-N-neopentyl-9H-purine-9-carboxamide

6-Amino-N-tert-butyl-9H-purine-9-carboxamide

6-Amino-N-tert-butyl-9H-purine-9-carboxamide

6-Amino-N-[(4-methylphenyl)sulfonyl]-9H-purine-9-carboxamide

6-Amino-N-[(4-methylphenyl)sulfonyl]-9H-purine-9-carboxamide