4-Amino-2-(difluoromethyl)-3-nitropyridine-5-sulfonyl chloride
3-Amino-4-chloro-6-(trifluoromethoxy)pyridine-2-sulfonamide
Methyl 2-(aminomethyl)-4-(difluoromethyl)-3-methylpyridine-5-carboxylate
5-(Difluoromethyl)-2-nitro-3-(trifluoromethoxy)pyridine-4-carbonyl chloride