Ethyl 2-bromo-4-fluoropyridine-5-acetate
Methyl 2-methoxy-4-methyl-5-(trifluoromethoxy)pyridine-3-acetate
3-(Difluoromethyl)-2-fluoro-4-nitropyridine-5-carboxylic acid
Ethyl 4-(difluoromethyl)-5-fluoro-3-hydroxypyridine-2-carboxylate
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