3-Hydroxy-5-(trifluoromethoxy)pyridine-2-sulfonyl chloride
4-(Difluoromethyl)-3-methoxypyridine-5-sulfonyl chloride
Methyl 4-(fluoromethyl)-2-methyl-6-(trifluoromethoxy)pyridine-3-carboxylate
6-(Aminomethyl)-4-chloro-3-(difluoromethyl)pyridine-2-acetic acid