2-(Difluoromethyl)-3-methoxy-6-methylpyridine-4-sulfonamide
Ethyl 4-(chloromethyl)-2-(difluoromethyl)-6-methoxypyridine-3-acetate
Ethyl 4-(chloromethyl)-2-(difluoromethyl)-5-methoxypyridine-3-acetate
Ethyl 4-(chloromethyl)-2-(difluoromethyl)-3-methoxypyridine-5-acetate