InChI=1S/C21H35N3O9S/c1-3-4-5-6-7-8-15(18(28)21(32)33-2)34-12-14(19(29)23-11-17(26)27)24-16(25)10-9-13(22)20(30)31/h7-8,13-15,18,28H,3-6,9-12,22H2,1-2H3,(H,23,29)(H,24,25)(H,26,27)(H,30,31)/b8-7-