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