2-Amino-3-(difluoromethyl)-5-nitro-4-(trifluoromethoxy)pyridine
2-Bromo-6-chloro-3-iodo-5-(trifluoromethoxy)pyridine
3-Bromo-4-(chloromethyl)-5-cyano-2-(trifluoromethoxy)pyridine
3-Bromo-2-(chloromethyl)-6-cyano-5-(trifluoromethoxy)pyridine
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