3-Amino-5-(difluoromethyl)-2-(trifluoromethyl)pyridine-6-carboxylic acid
2-Bromo-3-chloro-4-(difluoromethyl)pyridine-5-carboxylic acid
3-Amino-2-(difluoromethyl)-4-(trifluoromethyl)pyridine-6-carboxylic acid
5-Bromo-3-chloro-4-(difluoromethyl)pyridine-2-carboxaldehyde