2-Bromo-3-nitro-5-(trifluoromethoxy)-4-(trifluoromethyl)pyridine
3-Bromo-6-methyl-2-(trifluoromethoxy)-4-(trifluoromethyl)pyridine
3-Amino-5-(trifluoromethoxy)-2-(trifluoromethyl)pyridine-6-acetic acid
3-Amino-2-(trifluoromethoxy)-4-(trifluoromethyl)pyridine-6-acetic acid