InChI=1/C21H29N3O9S/c1-32-15-8-12(9-16(33-2)19(15)28)4-3-7-34-11-14(20(29)23-10-18(26)27)24-17(25)6-5-13(22)21(30)31/h3-4,8-9,13-14,28H,5-7,10-11,22H2,1-2H3,(H,23,29)(H,24,25)(H,26,27)(H,30,31)/b4-3+