[(2~{R},3~{S},4~{R},5~{R})-5-[6-chloranyl-4-(cyclopentylamino)pyrazolo[3,4-d]pyrimidin-1-yl]-3,4-bis(oxidanyl)oxolan-2-yl]methoxymethylphosphonic acid

2'-Deoxyguanosine-5'-triphosphate