InChI=1/C21H22Cl2N2O3/c22-18-11-6-15(12-19(18)23)21(26)13-20(14-4-2-1-3-5-14)24-16-7-9-17(10-8-16)25(27)28/h6-12,14,20,24H,1-5,13H2/t20-/m1/s1 8F0394609B617345