InChI=1/C20H23Cl2NO/c1-12-18(14-4-8-16(21)9-5-14)23-19(13(2)20(12,3)24)15-6-10-17(22)11-7-15/h4-13,18-19,23-24H,1-3H3/t12-,13+,18-,19+,20? 5EE50F06E2520D58