4.1.1.21	3-nitro-1-(beta-D-ribofuranosyl)pyrrole 5'-phosphate	-	78216	
4.1.1.21	4-nitro-1-(-beta-D-ribofuranosyl)pyrazole 5'-phosphate	-	78217	
4.1.1.21	4-nitro-1-(beta-D-ribofuranosyl)imidazole 5'-phosphate	-	78214	
4.1.1.21	4-Nitro-5-aminoimidazole ribonucleotide	steady-state inhibitor	20632	
4.1.1.21	4-Nitro-5-aminoimidazole ribonucleotide	tight-binding inhibitor	20632	
4.1.1.21	4-Nitro-5-aminoimidazole ribonucleotide	slow, tight binding inhibitor	20632	
4.1.1.21	5-Amino-1(5'-phospho-beta-D-ribofuranosyl)-4-nitroimidazole	-	95995	
4.1.1.21	5-amino-1-(beta-D-ribofuranosyl)-1,2,3-triazole-4-carboxylate 5'-phosphate	-	78220	
4.1.1.21	5-amino-1-(beta-D-ribofuranosyl)-4-nitropyrazole 5'-phosphate	-	78219	
4.1.1.21	5-amino-1-(beta-D-ribofuranosyl)imidazole-4-carboxaldehyde 5'-phosphate	-	78215	
4.1.1.21	5-amino-1-(beta-D-ribofuranosyl)pyrazole-4-carboxylate 5'-phosphate	-	78218