InChI=1S/C19H25NO7S/c21-18(20-11-14-5-1-2-6-15(14)12-20)10-16(19(22)23)8-13-4-3-7-17(9-13)27-28(24,25)26/h3-4,7,9,14-16H,1-2,5-6,8,10-12H2,(H,22,23)(H,24,25,26)