(R)-tert-Butyl (1-(7-(but-2-yn-1-yl)-3-methyl-1-((4-methylquinazolin-2-yl)methyl)-2,6-dioxo-2,3,6,7-tetrahydro-1H-purin-8-yl)piperidin-3-yl)carbamate
8-Bromo-7-(but-2-yn-1-yl)-3-methyl-1-((4-methylquinazolin-2-yl)methyl)-1H-purine-2,6(3H,7H)-dione
8-((3-Methoxyphenyl)sulfonyl)-9-(pent-4-yn-1-yl)-9H-purin-6-amine
6-Amino-9-(1-(but-2-ynoyl)pyrrolidin-3-yl)-7-(4-phenoxyphenyl)-7H-purin-8(9H)-one
8-((6-Iodobenzo[d][1,3]dioxol-5-yl)thio)-9-(pent-4-yn-1-yl)-9H-purin-6-amine
9-Benzyl-6-ethynyl-9H-purine
6-(Hex-1-yn-1-yl)-9-(tetrahydro-2H-pyran-2-yl)-9H-purine
9-(Pent-4-yn-1-yl)-8-((3,4,5-trimethoxyphenyl)sulfonyl)-9H-purin-6-amine
8-((3-Methoxyphenyl)sulfinyl)-9-(pent-4-yn-1-yl)-9H-purin-6-amine
7-Ethynyl-7H-purine
(S)-2-Methyl-5-(1H-purin-6-yl)pent-4-yn-1-ol
9-Benzyl-6-(phenylethynyl)-9H-purine
9-Ethynyl-9H-purin-6-amine
8-((6-Bromobenzo[d][1,3]dioxol-5-yl)thio)-9-(pent-4-yn-1-yl)-9H-purin-6-amine
6-Chloro-9-(4-chlorobut-2-yn-1-yl)-9H-purin-2-amine
6-(Prop-2-yn-1-ylthio)-7H-purine
4-((9-(Hydroxymethyl)-9H-purin-6-yl)thio)but-2-yn-1-ol
6-Ethynyl-9-(tetrahydro-2H-pyran-2-yl)-9H-purine
6-((1-Methyl-4-nitro-1H-imidazol-5-yl)thio)-9-(prop-2-yn-1-yl)-9H-purine
9-Ethyl-8-(hex-1-yn-1-yl)-9H-purin-6-amine
