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