3-Amino-4-(difluoromethyl)-5-fluoro-2-(trifluoromethoxy)pyridine
3-Amino-2-(difluoromethyl)-6-fluoro-5-(trifluoromethoxy)pyridine
3,6-Dimethyl-2-(difluoromethyl)-4-(trifluoromethoxy)pyridine
2,5-Dimethyl-3-(difluoromethyl)-6-(trifluoromethoxy)pyridine