Methyl 4-cyano-3-(difluoromethyl)-5-methylpyridine-2-acetate
3-(Chloromethyl)-6-cyano-2-(difluoromethyl)pyridine-5-acetic acid
Ethyl 3-(aminomethyl)-4-cyano-5-(difluoromethyl)pyridine-2-acetate
Methyl 4-cyano-6-(difluoromethyl)-2-methylpyridine-3-acetate