Ethyl 3-(difluoromethyl)-5-(trifluoromethyl)pyridine-2-carboxylate
Ethyl 3-(difluoromethyl)-4-(trifluoromethyl)pyridine-2-carboxylate
2,3-Difluoro-4-(difluoromethyl)pyridine-6-sulfonamide
Ethyl 3-(difluoromethyl)-2-(trifluoromethyl)pyridine-4-carboxylate