Ethyl 3-(difluoromethyl)-6-methoxy-2-(trifluoromethyl)pyridine-5-carboxylate
Ethyl 5-(difluoromethyl)-2-methoxy-4-(trifluoromethyl)pyridine-3-carboxylate
4-(Aminomethyl)-5-(difluoromethyl)-3-methyl-2-nitropyridine
Ethyl 5-(difluoromethyl)-2-methoxy-3-(trifluoromethyl)pyridine-4-carboxylate