Ethyl 3-bromo-2-chloro-4-(difluoromethyl)pyridine-6-acetate
6-Bromo-2-cyano-3-(difluoromethyl)pyridine-4-acetic acid
Ethyl 4-bromo-6-chloro-3-(difluoromethyl)pyridine-2-acetate
2-Bromo-5-cyano-6-(difluoromethyl)pyridine-3-acetic acid
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