InChI=1/C21H24N2O5/c1-25-15-6-4-14(5-7-15)22-10-12-23(13-11-22)20-16-8-9-17(26-2)19(27-3)18(16)21(24)28-20/h4-9,20H,10-13H2,1-3H3/t20-/m1/s1 00FD8376602BDD1A