4-(Difluoromethyl)-3-nitro-2-(trifluoromethoxy)pyridine
4-(Difluoromethyl)-2-nitro-3-(trifluoromethoxy)pyridine
6-Chloro-2,4-difluoro-3-(trifluoromethoxy)pyridine
3-Chloro-2,4-difluoro-6-(trifluoromethoxy)pyridine
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