1-(3-chlorophenyl)-3-(piperidin-1-ylmethylene)pyrrolidine-2,5-dione 2,5-pyrrolidinedione, 1-(3-chlorophenyl)-3-(1-piperidinylmethylene)- InChI=1/C16H17ClN2O2/c17-13-5-4-6-14(10-13)19-15(20)9-12(16(19)21)11-18-7-2-1-3-8-18/h4-6,10-11H,1-3,7-9H2/b12-11