Ethyl 2-chloro-4-(difluoromethyl)-3-hydroxypyridine-6-acetate
Ethyl 2-chloro-3-(difluoromethyl)-6-hydroxypyridine-4-acetate
Methyl 3-chloro-4-(difluoromethyl)-2-hydroxypyridine-6-acetate
5-Chloro-2-(difluoromethyl)-3-iodopyridine-6-acetonitrile
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