Methyl 2-bromo-6-(difluoromethyl)-3-nitropyridine-5-acetate
4-(Bromomethyl)-3-chloro-2-cyano-5-(difluoromethyl)pyridine
Methyl 6-bromo-3-(difluoromethyl)-4-nitropyridine-2-acetate
Methyl 2-bromo-5-(difluoromethyl)-3-nitropyridine-6-acetate
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