Methyl 3-(difluoromethyl)-6-hydroxy-2-nitropyridine-4-carboxylate
3-Amino-6-hydroxy-2-methoxy-4-(trifluoromethoxy)pyridine
Methyl 2-(difluoromethyl)-3-methoxy-5-methylpyridine-4-carboxylate
2-Methoxy-3-methyl-5-(trifluoromethoxy)pyridine-4-carbonyl chloride