InChI=1S/C20H27N3O9S/c1-32-12-4-2-11(3-5-12)18(28)15(9-24)33-10-14(19(29)22-8-17(26)27)23-16(25)7-6-13(21)20(30)31/h2-5,9,13-15,18,28H,6-8,10,21H2,1H3,(H,22,29)(H,23,25)(H,26,27)(H,30,31)