Ethyl 5-(difluoromethyl)-3,4-dimethoxypyridine-2-carboxylate
5-(Difluoromethyl)-2,3-dimethoxypyridine-4-carbonyl chloride
Ethyl 4-(difluoromethyl)-3,5-dimethoxypyridine-2-acetate
Ethyl 2-(difluoromethyl)-3,4-dimethoxypyridine-5-carboxylate
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