4-Bromo-3-fluoro-2-hydroxy-6-(trifluoromethoxy)pyridine
2-Bromo-5-chloro-4-nitro-3-(trifluoromethoxy)pyridine
6-Bromo-2-chloro-4-nitro-3-(trifluoromethoxy)pyridine
2-Bromo-4-chloro-5-nitro-3-(trifluoromethoxy)pyridine
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