6-Amino-3-(difluoromethyl)-4-methylpyridine-2-carboxaldehyde
2-(Difluoromethyl)-3-fluoro-5-nitropyridine-6-carboxaldehyde
3-(Difluoromethyl)-2-methoxy-5-nitropyridine-6-sulfonyl chloride
4-Amino-2-(chloromethyl)-5-(difluoromethyl)-3-(trifluoromethoxy)pyridine