InChI=1S/C20H32N2O4/c1-5-11(2)14-7-6-13-17(12(3)10-15(23)18(13)25)20(14,4)16(24)8-9-22-19(21)26/h6-9,11-15,17-18,23,25H,5,10H2,1-4H3,(H3,21,22,26)/b9-8-/t11-,12-,13-,14-,15-,17+,18+,20-/m1/s1