Methyl 3-(difluoromethyl)-5-nitro-4-(trifluoromethoxy)pyridine-2-acetate
Ethyl 2-(difluoromethyl)-3-methoxy-4-(trifluoromethoxy)pyridine-5-acetate
3-(Difluoromethyl)-2-methoxy-4-(trifluoromethoxy)pyridine-6-carboxylic acid
Methyl 5-(difluoromethyl)-4-nitro-2-(trifluoromethoxy)pyridine-3-acetate