InChI=1/C21H28N2O5/c1-21(2,3)20(26)22-11-7-8-14(12-22)18(24)23-13-17(19(25)27-4)28-16-10-6-5-9-15(16)23/h5-6,9-10,14,17H,7-8,11-13H2,1-4H3/t14-,17-/m0/s1 A72F218AAD24F54B