InChI=1S/C17H27NO16S2/c1-2-5(20)3-7(18-34-36(28,29)30)35-17-14(10(23)8(21)6(4-19)31-17)33-16-12(25)9(22)11(24)13(32-16)15(26)27/h2,5-6,8-14,16-17,19-25H,1,3-4H2,(H,26,27)(H,28,29,30)/b18-7+