4-Methyl-3-nitro-6-(trifluoromethoxy)pyridine-2-acetic acid
Ethyl 4-(difluoromethyl)-3-methoxy-6-(trifluoromethoxy)pyridine-2-carboxylate
2-Methyl-6-nitro-5-(trifluoromethoxy)pyridine-3-acetic acid
Ethyl 4-(difluoromethyl)-2-methoxy-3-(trifluoromethoxy)pyridine-6-carboxylate