1	XCS	(1r)-1-(4-amino-6-methyl-2-oxo-1,2-dihydroquinazolin-8-yl)-1,4-anhydro-2-deoxy-5-O-phosphono-D-erythro-pentitol	1.000
2	XTY	(1r)-1,4-anhydro-2-deoxy-1-(6-methyl-2,4-dioxo-1,2,3,4-tetrahydroquinazolin-8-yl)-5-O-phosphono-D-erythro-pentitol	0.923
3	FMP	Formycin-5'-monophosphate	0.714
4	DFT	1-[2-deoxyribofuranosyl]-2,4-difluoro-5-methyl-benzene-5'monophosphate	0.704