Ethyl 3-chloro-4-(difluoromethyl)-2-nitropyridine-6-acetate
5-(Aminomethyl)-2-bromo-4-(difluoromethyl)-3-(trifluoromethoxy)pyridine
4-(Chloromethyl)-2-(difluoromethyl)-5-hydroxypyridine-3-carboxaldehyde
2-(Aminomethyl)-3-methyl-5-(trifluoromethoxy)pyridine-4-carboxylic acid