InChI=1S/C22H28N2O5/c1-4-13-11-24-9-8-22(19-16(23-21(22)27)6-5-7-17(19)25)18(24)10-14(13)15(12-28-2)20(26)29-3/h5-7,12-14,18,25H,4,8-11H2,1-3H3,(H,23,27)/b15-12+/t13-,14-,18?,22?/m0/s1