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