3-(Difluoromethyl)-6-methoxy-2-nitropyridine-4-sulfonyl chloride
5-(Chloromethyl)-2-methyl-4-nitro-3-(trifluoromethoxy)pyridine
Methyl 3-chloro-5-(difluoromethyl)-4-methylpyridine-2-acetate
2-Cyano-5-fluoro-4-(trifluoromethoxy)pyridine-3-carbonyl chloride