Ethyl 3-(aminomethyl)-2-(difluoromethyl)-4-(trifluoromethyl)pyridine-6-carboxylate
Ethyl 3-(aminomethyl)-2-(difluoromethyl)-4-(trifluoromethyl)pyridine-5-carboxylate
Ethyl 6-(aminomethyl)-2-(difluoromethyl)-3-(trifluoromethyl)pyridine-4-carboxylate
Ethyl 2-(aminomethyl)-6-(difluoromethyl)-5-(trifluoromethyl)pyridine-3-carboxylate