4-Amino-2-bromo-3-(difluoromethyl)pyridine-6-carboxaldehyde
3-Amino-4-(difluoromethyl)-2-fluoro-6-(trifluoromethyl)pyridine
3-Amino-5-bromo-6-(difluoromethyl)pyridine-2-carboxaldehyde
2-Amino-3-(difluoromethyl)-4-fluoro-6-nitropyridine
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