InChI=1S/C25H27NO5S/c1-26-17-19-30-23-14-12-22(13-15-23)25(21-10-6-3-7-11-21)24(16-18-31-32(27,28)29)20-8-4-2-5-9-20/h2-15,26H,16-19H2,1H3,(H,27,28,29)/b25-24+