1	PF1	N-[(4-amino-2-methylpyrimidin-5-yl)methyl]-N-(2-hydroxyethyl)formamide	1.000
2	YF4	5-{[ethyl(methyl)amino]methyl}-2-methyl-5,6-dihydropyrimidin-4-amine	0.867
3	NFM	N-[(4-amino-2-methylpyrimidin-5-yl)methyl]formamide	0.800
4	YF3	2-{[(4-amino-2-methylpyrimidin-5-yl)methyl]amino}propane-1-thiol	0.706