2-Cyano-6-(difluoromethyl)-3-methoxypyridine-5-carboxylic acid
3-(Aminomethyl)-5-hydroxy-6-(trifluoromethoxy)pyridine-2-carboxylic acid
3-(Aminomethyl)-4-hydroxy-6-(trifluoromethoxy)pyridine-2-carboxylic acid
3-(Aminomethyl)-4-hydroxy-2-(trifluoromethoxy)pyridine-6-carboxylic acid