InChI=1/C20H17ClN2O/c1-13-20-19(24-23-13)12-16(14-7-9-17(21)10-8-14)11-18(22-20)15-5-3-2-4-6-15/h2-10,16H,11-12H2,1H3/t16-/m0/s1 E7BF8A73313B6CC2