3-Amino-2-methoxy-5-(trifluoromethoxy)pyridine-4-carboxylic acid
3-Bromo-6-cyano-2-(difluoromethyl)-5-(trifluoromethoxy)pyridine
6-Amino-2-methoxy-3-(trifluoromethoxy)pyridine-4-carboxylic acid
2-Amino-6-methoxy-4-(trifluoromethoxy)pyridine-3-carboxylic acid