InChI=1S/C19H26N2O11/c1-30-9-4-2-8(3-5-9)7-21-16(25)11(6-10(20)17(26)27)31-19-14(24)12(22)13(23)15(32-19)18(28)29/h2-5,10-15,19,22-24H,6-7,20H2,1H3,(H,21,25)(H,26,27)(H,28,29)