InChI=1/C20H19N3O5/c1-11-18(14-6-4-5-7-15(14)22-11)19(24)12(2)28-20(25)13-8-9-16(21-3)17(10-13)23(26)27/h4-10,12,21-22H,1-3H3/t12-/m1/s1 9012EB9B3D331B07