1	LGP	N9-1-hydroxy-prop-2-oxymethyl-guanine-3'-monophosphate	1.000
2	4DG	2-[(2-amino-6-oxo-1,6-dihydro-9h-purin-9-yl)methoxy]ethyl dihydrogen phosphate	0.909
3	GA2	9-(1,3-dihydroxy-propoxymethane)guanine	0.739
4	AC2	9-hyroxyethoxymethylguanine	0.727