5-Amino-2-methoxy-3-(trifluoromethoxy)pyridine-4-acetonitrile
6-Amino-3-(fluoromethyl)-2-methoxy-4-(trifluoromethoxy)pyridine
4-Amino-5-methoxy-3-(trifluoromethoxy)pyridine-2-acetonitrile
3-Amino-6-(difluoromethyl)-2-methoxy-5-(trifluoromethoxy)pyridine