InChI=1S/C18H25ClN2O2/c1-13(2)8-9-17(22)21-10-4-7-16(21)18(23)20-12-14-5-3-6-15(19)11-14/h3,5-6,11,13,16H,4,7-10,12H2,1-2H3,(H,20,23)/t16-/m0/s1