InChI=1S/C26H29NO6S/c1-4-25(20-7-5-9-22(28)17-20)26(21-8-6-10-24(18-21)33-34(29,30)31)19-11-13-23(14-12-19)32-16-15-27(2)3/h5-14,17-18,28H,4,15-16H2,1-3H3,(H,29,30,31)/b26-25+