InChI=1S/C20H23ClN2O/c1-23-11-8-16(9-12-23)20(24)18-7-6-17(21)13-15(18)5-4-14-3-2-10-22-19(14)20/h2-3,6-7,10,13,16,24H,4-5,8-9,11-12H2,1H3