Ethyl 4-amino-5-(difluoromethyl)-2-(trifluoromethyl)pyridine-3-carboxylate
5-Amino-4-(difluoromethyl)-3-(trifluoromethyl)pyridine-2-carboxylic acid
Ethyl 4-amino-3-(difluoromethyl)-5-(trifluoromethyl)pyridine-2-carboxylate
3-Amino-4-(difluoromethyl)-2-(trifluoromethyl)pyridine-5-carboxylic acid