1	SV2	[{2-[(guanine-9-yl)methyl]propane-1,3-diyl}bis(oxymethylene)]bis(phosphonic acid)	1.000
2	6WC	[2-[(6-oxidanylidene-1~{H}-purin-9-yl)methyl]-3-(phosphonomethoxy)propoxy]methylphosphonic acid	0.963
3	9YP	{[(2r)-2-[(2-amino-6-oxo-1,6-dihydro-9h-purin-9-yl)methyl]-3-(2-phosphonoethoxy)propoxy]methyl}phosphonic acid	0.719