InChI=1S/C26H29NO5S/c1-20(32-33(28,29)30)25(21-10-6-4-7-11-21)26(22-12-8-5-9-13-22)23-14-16-24(17-15-23)31-19-18-27(2)3/h4-17,20H,18-19H2,1-3H3,(H,28,29,30)/p-1/b26-25-