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