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