1 5A8 5'-azido-5'-deoxy-8-[(2-{[2-(1h-indol-3-yl)ethyl]amino}-2-oxoethyl)sulfanyl]adenosine 1.000 2 5A9 5'-azido-8-[(2-{[2-(3-bromophenyl)ethyl]amino}-2-oxoethyl)sulfanyl]-5'-deoxyadenosine 0.846 3 5AG 5'-azido-5'-deoxy-8-[(2-{[2-(3-ethynylphenyl)ethyl]amino}-2-oxoethyl)sulfanyl]adenosine 0.825 4 5AQ 8-({2-oxo-2-[(2-phenylethyl)amino]ethyl}sulfanyl)adenosine 0.769 5 5AK 8-[(2-{[2-(3-bromophenyl)ethyl]amino}-2-oxoethyl)sulfanyl]adenosine 0.750 6 E3K Azanylidene-[[(2~{R},3~{S},4~{R},5~{R})-5-[6-azanyl-8-[2-oxidanylidene-2-(2-sulfanylethylamino)ethyl]sulfanyl-purin-9-yl]-3,4-bis(oxidanyl)oxolan-2-yl]methylimino]azanium 0.737 7 E9W Azanylidene-[[(2~{R},3~{S},4~{R},5~{R})-5-[6-azanyl-8-[2-oxidanylidene-2-(prop-2-ynylamino)ethyl]sulfanyl-purin-9-yl]-3,4-bis(oxidanyl)oxolan-2-yl]methylimino]azanium 0.737