4-Amino-3-cyano-5-(difluoromethyl)-2-nitropyridine
3-(Chloromethyl)-2-(difluoromethyl)-6-(trifluoromethyl)pyridine-4-acetic acid
Methyl 2-amino-4-chloro-3-(difluoromethyl)pyridine-6-carboxylate
4-(Difluoromethyl)-3-fluoro-2-(trifluoromethyl)pyridine-5-acetic acid