InChI=1S/C25H27NO4S/c1-3-24(20-10-6-4-7-11-20)25(21-12-8-5-9-13-21)22-14-16-23(17-15-22)30-19-18-26(2)31(27,28)29/h4-17H,3,18-19H2,1-2H3,(H,27,28,29)/p-1/b25-24-