InChI=1S/C19H22N2O5/c1-3-14(22)19-11-9-25-15(16(19)26-19)18(8-12(11)20)10-6-4-5-7-13(10)21(24-2)17(18)23/h4-7,11-12,15-16H,3,8-9,20H2,1-2H3/t11-,12+,15-,16+,18+,19+/m1/s1