InChI=1S/C19H20ClN3O3/c1-10(11-4-5-11)23-9-13-6-12(7-14(20)17(13)19(23)25)16-8-15(21-26-16)18(24)22(2)3/h6-8,10-11H,4-5,9H2,1-3H3/t10-/m0/s1