InChI=1/C21H17Cl2N3O2/c1-2-28-15-8-6-14(7-9-15)26-20(19-16(21(26)27)4-3-11-24-19)25-13-5-10-17(22)18(23)12-13/h3-12,20,25H,2H2,1H3/t20-/m1/s1 25B393E5A71C53E3