InChI=1S/C18H28N2O13/c21-4-8(23)10(32-18-15(29)13(27)14(28)16(33-18)17(30)31)1-6-2-19-3-7(20-6)11(25)12(26)9(24)5-22/h2-3,8-16,18,21-29H,1,4-5H2,(H,30,31)