2-Bromo-3-(difluoromethyl)-6-nitro-5-(trifluoromethoxy)pyridine
3-Bromo-2-(fluoromethyl)-6-nitro-4-(trifluoromethoxy)pyridine
3-Bromo-2-(fluoromethyl)-5-nitro-4-(trifluoromethoxy)pyridine
3-Bromo-4-iodo-5-methyl-2-(trifluoromethoxy)pyridine
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