InChI=1S/C19H22N2O5/c1-19(2)11-8-10-6-5-7-12(20-3)15(10)17(24)16(11)18(25)21(19)13(22)9-14(23)26-4/h5-7,11,16,20H,8-9H2,1-4H3/t11-,16-/m1/s1