4-Chloro-2-methyl-3,5-dinitropyridine
4-Bromo-1-methyl-2,3-dihydro-1H-pyrrolo[2,3-b]pyridine
3-Benzyloxy-1-(2,3-dihydroxy-propyl)-4-oxo-1,4-dihydro-pyridine-2-carboxylic acid
Imidazo[1,2-a]pyridine-2-carboxylic acid, 8-bromo-1,5-dihydro-, ethyl ester