InChI=1S/C23H27NO6S/c1-3-4-6-21-22(19-15-17(24-31(2,27)28)9-12-20(19)30-21)23(26)16-7-10-18(11-8-16)29-14-5-13-25/h7-12,15,24-25H,3-6,13-14H2,1-2H3