Methyl 3-amino-4-hydroxy-2-(trifluoromethoxy)pyridine-6-carboxylate
Ethyl 2-(bromomethyl)-5-methoxy-3-(trifluoromethoxy)pyridine-6-acetate
5-Bromo-4-(difluoromethyl)-2-nitropyridine-3-sulfonyl chloride
2-Amino-6-(bromomethyl)-5-(difluoromethyl)-3-nitropyridine