3-Amino-6-(fluoromethyl)-2-nitro-5-(trifluoromethoxy)pyridine
6-Amino-2-(difluoromethyl)-4-methyl-3-(trifluoromethoxy)pyridine
3-Amino-2-(fluoromethyl)-4-nitro-6-(trifluoromethoxy)pyridine
2-Amino-5-(difluoromethyl)-3-methyl-4-(trifluoromethoxy)pyridine