121112-76-3 5-Pyrimidinecarboxylic acid, 1,2,3,4-tetrahydro-4-(2-(difluoromethoxy)phenyl)-6-methyl-2-oxo-,propyl ester 5-Pyrimidinecarboxylic acid, 4-(2-(difluoromethoxy)phenyl)-1,2,3,4-tetrahydro-6-methyl-2-oxo-, propyl ester