3-(Aminomethyl)-2-cyano-6-(trifluoromethoxy)pyridine-4-carboxylic acid
3-Amino-2-(difluoromethyl)-5-methoxypyridine-4-carboxylic acid
3-Amino-4-(difluoromethyl)-2-methoxypyridine-6-carbonyl chloride
2-Cyano-5-nitro-4-(trifluoromethoxy)pyridine-3-carboxylic acid