5-(Difluoromethyl)-4-methyl-3-nitropyridine-2-sulfonyl chloride
Methyl 2-(aminomethyl)-6-(difluoromethyl)-3-methylpyridine-4-carboxylate
3-(Difluoromethyl)-4-methyl-2-nitropyridine-6-sulfonyl chloride
Methyl 6-(aminomethyl)-3-(difluoromethyl)-2-methylpyridine-4-carboxylate