4-Chloro-2,3-difluoro-6-(trifluoromethoxy)pyridine
3,4-Dichloro-2-(fluoromethyl)-5-(trifluoromethoxy)pyridine
3,4-Difluoro-2-methyl-6-(trifluoromethoxy)pyridine
2,6-Dichloro-3-(fluoromethyl)-4-(trifluoromethoxy)pyridine
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