InChI=1S/C23H20O10/c24-17-18(25)21(22(27)28)33-23(19(17)26)31-10-1-2-11-13-8-30-15-7-14-9(3-4-29-14)5-12(15)20(13)32-16(11)6-10/h1-7,13,17-21,23-26H,8H2,(H,27,28)