4-(Difluoromethyl)-2-(trifluoromethyl)pyridine-5-carboxylic acid
3-(Difluoromethyl)-5-(trifluoromethyl)pyridine-4-carboxylic acid
2-(Difluoromethyl)-4-methoxypyridine-3-carboxaldehyde
3-(Difluoromethyl)-4-(trifluoromethyl)pyridine-5-carboxylic acid
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