InChI=1/C20H23N3O4/c1-13-10-18(24)27-17-11-14(5-6-16(13)17)21-19(25)20(26)23-9-3-8-22-7-2-4-15(22)12-23/h5-6,10-11,15H,2-4,7-9,12H2,1H3,(H,21,25)/p+1/t15-/m0/s1/fC20H24N3O4/h21-22H/q+1 2E8CB97FB20397B6