InChI=1S/C22H29NO8S/c1-14(24)23(2,3)11-10-16-7-9-19(29-4)22(30-5)21(16)17(23)12-15-6-8-18(25)20(13-15)31-32(26,27)28/h6-9,13,17,25H,10-12H2,1-5H3,(H,26,27,28)/q+1