2-Difluoromethoxy-3-fluoro-6-(trifluoromethyl)pyridine
5-Chloro-2-(difluoromethoxy)-3-(trifluoromethyl)pyridine
3-Chloro-2-(difluoromethoxy)-6-(trifluoromethyl)pyridine
3-Bromo-6-(difluoromethoxy)-2-(trifluoromethyl)pyridine
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