InChI=1S/C26H29NO6S/c1-27(2)16-18-32-23-13-11-21(12-14-23)26(25(15-17-28)20-7-4-3-5-8-20)22-9-6-10-24(19-22)33-34(29,30)31/h3-14,19,28H,15-18H2,1-2H3,(H,29,30,31)/b26-25+