2-(Difluoromethyl)-3-fluoropyridine-6-carboxylic acid
2-(Difluoromethyl)-3-fluoropyridine-4-carboxylic acid
3-(Difluoromethyl)-6-fluoro-2-(trifluoromethyl)pyridine
5-(Difluoromethyl)-2-fluoro-3-(trifluoromethyl)pyridine
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