1	4X2	(2-{[(2s)-1-hydroxy-3-(6-oxo-1,6-dihydro-9h-purin-9-yl)propan-2-yl]oxy}ethyl)phosphonic acid	1.000
2	4X7	(2-{[(2s)-1-(2-amino-6-oxo-1,6-dihydro-9h-purin-9-yl)-3-hydroxypropan-2-yl]oxy}ethyl)phosphonic acid	0.955
3	H26	{2-[2-(6-oxo-1,6-dihydro-9h-purin-9-yl)ethoxy]ethyl}phosphonic acid	0.905
4	25H	{2-[2-(2-amino-6-oxo-1,6-dihydro-9h-purin-9-yl)ethoxy]ethyl}phosphonic acid	0.864
5	1IO	(S)-2-(2-(6-amino-9h-purin-9-yl)ethoxy)-3-phosphonopropanoic acid	0.720