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