2-(Difluoromethyl)-5-fluoro-3-(fluoromethyl)pyridine
4-(Difluoromethyl)-5-fluoro-2-nitropyridine
4-(Difluoromethyl)-2-fluoro-5-nitropyridine
2-(Difluoromethyl)-3-fluoro-6-(fluoromethyl)pyridine
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