InChI=1S/C18H28N2O13/c21-9(17(31)33-18-12(24)10(22)11(23)13(32-18)16(29)30)1-4-19-7(14(25)26)2-5-20-6-3-8(20)15(27)28/h7-13,18-19,21-24H,1-6H2,(H,25,26)(H,27,28)(H,29,30)