Methyl 3-chloro-2-hydroxy-5-(trifluoromethoxy)pyridine-6-carboxylate
2-Bromo-3-methoxy-6-(trifluoromethoxy)pyridine-4-sulfonyl chloride
Methyl 3-chloro-2-hydroxy-4-(trifluoromethoxy)pyridine-5-carboxylate
2-Bromo-3-methoxy-4-(trifluoromethoxy)pyridine-6-sulfonyl chloride