Ethyl 2,3-dibromo-5-(difluoromethyl)pyridine-6-acetate
Ethyl 5-(difluoromethyl)-2-(trifluoromethyl)pyridine-4-acetate
Ethyl 2,3-dibromo-4-(difluoromethyl)pyridine-5-acetate
Ethyl 4-(difluoromethyl)-2-(trifluoromethyl)pyridine-5-acetate
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