[(2R,3S,4R,5R)-5-[6-amino-2-(2-phenylethynyl)purin-9-yl]-3,4-dihydroxyoxolan-2-yl]methyl (hydroxy-phosphonooxyphosphoryl) hydrogen phosphate; azane [(2R,3S,4R,5R)-5-[6-amino-2-(2-phenylethynyl)purin-9-yl]-3,4-dihydroxy-tetrahydrofuran-2-yl]methyl (hydroxy-phosphonooxy-phosphoryl) hydrogen phosphate; ammonia [(2R,3S,4R,5R)-5-[6-amino-2-(2-phenylethynyl)-9-purinyl]-3,4-dihydroxy-2-tetrahydrofuranyl]methyl (hydroxy-phosphonooxyphosphoryl) hydrogen phosphate; ammonia [(2R,3S,4R,5R)-5-[6-amino-2-(2-phenylethynyl)purin-9-yl]-3,4-dihydroxy-oxolan-2-yl]methyl (hydroxy-phosphonooxy-phosphoryl) hydrogen phosphate; azane