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