2-(Difluoromethyl)-4-methoxy-6-nitropyridine-3-sulfonyl chloride
6-Amino-3-fluoro-4-(trifluoromethoxy)pyridine-2-carbonyl chloride
4-Amino-2-(aminomethyl)-3-nitro-6-(trifluoromethoxy)pyridine
4-Bromo-3-(chloromethyl)-2-(difluoromethyl)pyridine-6-carboxaldehyde