InChI=1S/C20H31N3O9S/c1-2-15(14(24)6-4-3-5-7-17(26)27)33-11-13(19(30)22-10-18(28)29)23-16(25)9-8-12(21)20(31)32/h3-5,7,12-15,24H,2,6,8-11,21H2,1H3,(H,22,30)(H,23,25)(H,26,27)(H,28,29)(H,31,32)/b4-3-,7-5+