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