InChI=1S/C14H24N2O4/c1-4-10(5-2)20-12-7-9(14(18)19)6-11(15)13(12)16-8(3)17/h7,10-13H,4-6,15H2,1-3H3,(H,16,17)(H,18,19)/t11-,12+,13+/m0/s1