InChI=1S/C21H24ClN3O2/c22-17-9-4-8-16(12-17)14-24-20(26)19-10-5-11-25(19)21(27)18(23)13-15-6-2-1-3-7-15/h1-4,6-9,12,18-19H,5,10-11,13-14,23H2,(H,24,26)/t18-,19+/m1/s1