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