1	SOS	[(1r,2s,4r)-4-({2-amino-5-[benzyl(formyl)amino]-6-oxo-1,6-dihydropyrimidin-4-yl}amino)-2-hydroxycyclopentyl]methyl dihydrogen phosphate	1.000
2	FOX	((1r,2s,4r)-4-{[2-amino-5-(formylamino)-6-oxo-3,6-dihydropyrimidin-4-yl]amino}-2-hydroxycyclopentyl)methyl 5'-phosphate	0.774
3	LWM	[(1r,2s,4r)-4-{[2-amino-5-(formylamino)-6-oxo-1,6-dihydropyrimidin-4-yl]amino}-2-hydroxycyclopentyl]methyl dihydrogen phosphate	0.774
4	MF7	N-{2-amino-5-[formyl(methyl)amino]-6-hydroxypyrimidin-4-yl}-2-deoxy-5-O-phosphono-beta-D-erythro-pentofuranosylamine	0.750
5	8NI	N-[(5s)-2-amino-5-formamido-6-oxo-5,6-dihydropyrimidin-4-yl]-2-deoxy-5-O-phosphono-beta-D-erythro-pentofuranosylamine	0.719