InChI=1S/C22H29NO7S/c1-15(24)23(2,3)13-12-17-8-11-20(28-4)22(29-5)21(17)19(23)14-16-6-9-18(10-7-16)30-31(25,26)27/h6-11,19H,12-14H2,1-5H3,(H,25,26,27)/q+1