InChI=1/C21H21ClN2O2/c22-18-8-6-17(7-9-18)21(25)14-23-13-16-4-10-20(11-5-16)26-15-19-3-1-2-12-24-19/h1-12,21,23,25H,13-15H2/t21-/m1/s1 8B732FA9407ECDF3