5-Amino-2-cyano-4-(difluoromethyl)pyridine-3-carboxaldehyde
Ethyl 5-(difluoromethyl)-4-methyl-3-nitropyridine-2-carboxylate
Methyl 4-amino-3-methyl-6-(trifluoromethoxy)pyridine-2-carboxylate
4-(Pyridin-4-yl)-3-(trifluoromethyl)benzene-1-sulfonyl chloride