InChI=1/C20H21ClN2O/c1-2-9-23-10-8-16-17-12-14(21)6-7-18(17)22-19(16)20(23)13-4-3-5-15(24)11-13/h3-7,11-12,20,22,24H,2,8-10H2,1H3/t20-/m0/s1 D628271B269149F6