InChI=1S/C19H24N2O6/c1-10(22)21-12(9-26-11(2)23)7-14(24)13-5-6-16-17(18(13)20)15(25)8-19(3,4)27-16/h5-6,12H,7-9,20H2,1-4H3,(H,21,22)