5-(Aminomethyl)-2-hydroxy-4-(trifluoromethoxy)pyridine-3-carboxylic acid
3-Cyano-2-(difluoromethyl)-4-methoxy-5-nitropyridine
5-Amino-4-(difluoromethyl)-3-hydroxy-2-(trifluoromethoxy)pyridine
Methyl 4-(difluoromethyl)-2-methyl-3-nitropyridine-5-acetate