1	IRP	(1s)-1(9-deazahypoxanthin-9yl)1,4-dideoxy-1,4-imino-D-ribitol-5-phosphate	1.000
2	IMU	Phosphoric acid mono-[5-(2-amino-4-oxo-4,5-dihydro-3h-pyrrolo[3,2-D]pyrimidin-7-yl)-3,4-dihydroxy-pyrrolidin-2-ylmethyl] ester	0.958
3	FMP	Formycin-5'-monophosphate	0.769
4	IMH	1,4-dideoxy-4-aza-1-(S)-(9-deazahypoxanthin-9-yl)-D-ribitol	0.750
5	IMG	1,4-dideoxy-1,4-imino-1-(S)-(9-deazaguanin-9-yl)-D-ribitol	0.720
6	MTI	3,4-dihydroxy-2-[(methylsulfanyl)methyl]-5-(4-oxo-4,5-dihydro-3h-pyrrolo[3,2-D]pyrimidin-7-yl)pyrrolidinium	0.720
7	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	0.714