InChI=1S/C18H27N3O4/c1-3-13(4-2)20-14-9-12(17(24)25)5-6-15(14)21-16(23)7-8-18(21,10-19)11-22/h5-6,9,13,20,22H,3-4,7-8,10-11,19H2,1-2H3,(H,24,25)/t18-/m1/s1