InChI=1S/C26H29NO5S/c1-4-25(20-9-6-5-7-10-20)26(22-11-8-12-24(19-22)32-33(28,29)30)21-13-15-23(16-14-21)31-18-17-27(2)3/h5-16,19H,4,17-18H2,1-3H3,(H,28,29,30)/b26-25+