Ethyl 3-amino-5-(difluoromethyl)-6-methylpyridine-2-acetate
4-Bromo-3-chloro-6-(difluoromethyl)pyridine-2-carboxaldehyde
Ethyl 3-chloro-2-methoxy-6-(trifluoromethoxy)pyridine-4-carboxylate
Ethyl 3-amino-4-(difluoromethyl)-5-methylpyridine-2-carboxylate