4-(4-fluorobenzylidene)-2-phenyl-5(4H)-oxazolone, 4-(4-fluorobenzyliden)-2-phenyl-5(4H)-oxazolone, 2-Phenyl-4-(4-fluorobenzylidene)oxazole-5(4H)-one, 4-[(4-Fluorophenyl)methylene]-2-phenyl-2-oxazolin-5-one, (Z/E)-4-(4-fluorobenzylidene)-2-phenyl-1,3-oxazol-5(4H)-one, 2-Phenyl-4-(4-fluorobenzylidene)-2-oxazoline-5-one, 4-(4-fluorobenzylidene)-2-phenyloxazol-5(4H)-one, 4-(4-fluorobenzylidene)-2-phenyloxazol-5-one, 4-[(4-fluorophenyl)methylene]-2-phenyloxazol-5(4H)-one