InChI=1/C21H22N2O5/c1-22(2)21(25)19-13-23(15-5-3-4-6-16(15)28-19)20(24)12-14-7-8-17-18(11-14)27-10-9-26-17/h3-8,11,19H,9-10,12-13H2,1-2H3/t19-/m1/s1 D316564AADF317CA