InChI=1/C15H14Cl2N2O2/c16-10-6-4-7-11(13(10)17)18-15(20)14-9-5-2-1-3-8-12(9)21-19-14/h4,6-7H,1-3,5,8H2,(H,18,20)/f/h18H 47682951C68BD694