2-Amino-3-cyano-6-(difluoromethyl)-4-(trifluoromethyl)pyridine
5-Amino-2-(difluoromethyl)-3-fluoro-6-(trifluoromethyl)pyridine
4-Amino-3-(difluoromethyl)-6-fluoro-2-(trifluoromethyl)pyridine
4-Amino-2-(difluoromethyl)-6-fluoro-3-(trifluoromethyl)pyridine