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