5-(Chloromethyl)-2-fluoro-4-(trifluoromethoxy)pyridine-3-carboxaldehyde
4-Amino-5-(chloromethyl)-3-(trifluoromethoxy)pyridine-2-acetic acid
3,6-Diamino-2-(difluoromethyl)pyridine-5-carbonyl chloride
4-Cyano-3-(difluoromethyl)-2-methoxy-6-methylpyridine