Ethyl 4-amino-5-(difluoromethyl)pyridine-2-acetate
Ethyl 5-(difluoromethyl)-4-methylpyridine-2-acetate
Ethyl 5-amino-3-(difluoromethyl)pyridine-2-acetate
Ethyl 6-(difluoromethyl)-2-methylpyridine-3-acetate
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