1	SON	Adenosine phosphonoacetic acid	1.000
2	AOC	5'-O-prop-2-yn-1-yladenosine	0.778
3	5UA	5'-O-carboxy-2'-deoxyadenosine	0.741
4	DJ2	(2~{R},3~{R},4~{S},5~{R})-2-(6-aminopurin-9-yl)-5-(azanyloxymethyl)oxolane-3,4-diol	0.704
5	3F5	5'-O-(2-amino-2-oxoethyl)-8-(methylamino)adenosine	0.700