Methyl 4-amino-2-(difluoromethyl)-3-(trifluoromethyl)pyridine-5-carboxylate
Methyl 2-amino-3-(difluoromethyl)-6-(trifluoromethyl)pyridine-5-carboxylate
Ethyl 3-amino-6-(difluoromethyl)-2-(trifluoromethyl)pyridine-5-carboxylate
3-Amino-2-(difluoromethyl)-6-(trifluoromethyl)pyridine-5-acetic acid