Ethyl 4-chloro-6-fluoronicotinate
Methyl 2-(difluoromethyl)-3-hydroxy-6-methoxypyridine-5-carboxylate
Methyl 5-amino-2-nitro-3-(trifluoromethoxy)pyridine-6-acetate
Ethyl 3-(difluoromethyl)-5-nitro-2-(trifluoromethoxy)pyridine-6-acetate
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