Ethyl 2-methyl-5-nitro-4-(trifluoromethoxy)pyridine-3-acetate
3-(Aminomethyl)-2-(difluoromethyl)-6-(trifluoromethoxy)pyridine-4-acetic acid
Ethyl 2-methyl-4-nitro-5-(trifluoromethoxy)pyridine-3-acetate
2-(Aminomethyl)-6-(difluoromethyl)-5-(trifluoromethoxy)pyridine-3-acetic acid