InChI=1S/C24H24O5S/c1-2-23(19-9-5-3-6-10-19)24(20-11-7-4-8-12-20)21-13-15-22(16-14-21)28-17-18-29-30(25,26)27/h3-16H,2,17-18H2,1H3,(H,25,26,27)/b24-23+