4-Amino-3-(difluoromethyl)-2-nitropyridine-6-methanol
4-(Aminomethyl)-3-cyano-6-(difluoromethyl)pyridine-2-carboxaldehyde
2-Amino-3-(chloromethyl)-5-(trifluoromethoxy)pyridine-4-carboxylic acid
5-Bromo-4-methoxy-2-(trifluoromethoxy)pyridine-3-carboxylic acid