4-(Difluoromethyl)-2-methyl-3-nitropyridine-5-sulfonyl chloride
4-(Aminomethyl)-5-(difluoromethyl)-2-methyl-3-(trifluoromethyl)pyridine
3-(Difluoromethyl)-5-methyl-6-nitropyridine-2-sulfonyl chloride
4-(Aminomethyl)-5-(difluoromethyl)-3-methyl-2-(trifluoromethyl)pyridine