2-Amino-6-(difluoromethyl)-3-methoxypyridine-4-sulfonamide
4-Hydroxy-6-methyl-3-(trifluoromethoxy)pyridine-2-acetic acid
4-Chloro-3-(difluoromethyl)-2-hydroxypyridine-6-carboxylic acid
6-Amino-4-(chloromethyl)-3-(difluoromethyl)pyridine-2-carboxylic acid