6-Difluoromethoxy-5-(trifluoromethyl)nicotinic acid
2-Difluoromethoxy-3-(trifluoromethyl)isonicotinic acid
6-Difluoromethoxy-3-(trifluoromethyl)pyridine-2-acetonitrile
6-Difluoromethoxy-2-(trifluoromethyl)pyridine-3-acetonitrile
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