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