1 9O7 [(3~{S},4~{R},5~{R})-5-(6-aminopurin-9-yl)-4-oxidanyl-oxolan-3-yl] [oxidanyl(phosphonooxy)phosphoryl] hydrogen phosphate 1.000 2 ZDA 2',5'-dideoxyadenosine 3'-(tetrahydrogen triphosphate) 0.933