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