4-Bromo-2-nitro-3-(trifluoromethoxy)pyridine-6-carboxaldehyde
4-Chloro-6-cyano-2-(difluoromethyl)-3-(trifluoromethyl)pyridine
4-Amino-5-(chloromethyl)-2-iodo-3-(trifluoromethoxy)pyridine
2,3-Diamino-4-(difluoromethyl)pyridine-6-acetonitrile
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