InChI=1S/C18H18BrClN2O/c19-13-7-8-17(21)15(11-13)18(23)22-9-3-5-14(22)10-12-4-1-2-6-16(12)20/h1-2,4,6-8,11,14H,3,5,9-10,21H2/t14-/m1/s1