5-Bromo-3-(difluoromethyl)-2-fluoro-4-nitropyridine
4-Bromo-6-(difluoromethyl)-3-fluoro-2-nitropyridine
4-Bromo-3-(difluoromethyl)-2-fluoro-6-nitropyridine
3-Bromo-6-cyano-2-(difluoromethyl)-4-fluoropyridine
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