1 LHD 2-[(2~{R},3~{S},4~{R},5~{R})-5-(6-aminopurin-9-yl)-3,4-bis(oxidanyl)oxolan-2-yl]ethyl-[[4-azanyl-1-(methoxymethyl)-2-oxidanylidene-pyrimidin-5-yl]methyl]azanium 1.000 2 78G 2-[(2~{R},3~{S},4~{R},5~{R})-5-(6-aminopurin-9-yl)-3,4-bis(oxidanyl)oxolan-2-yl]ethyl-[[4-azanyl-1-(methoxymethyl)-2-oxidanylidene-pyrimidin-5-yl]methyl]-[(3~{S})-3-azanyl-4-oxidanyl-4-oxidanylidene-butyl]azanium 0.821 3 LHF 5-[[2-[(2~{R},3~{S},4~{R},5~{R})-5-(6-aminopurin-9-yl)-3,4-bis(oxidanyl)oxolan-2-yl]ethylamino]methyl]-4-azanyl-1-[2-(4-bromanylphenoxy)ethyl]pyrimidin-2-one 0.732