InChI=1S/C23H22O10/c1-11(24)30-10-17-20(13-8-14(27-2)19(26)15(9-13)28-3)33-22-16(29-4)7-12-5-6-18(25)32-21(12)23(22)31-17/h5-9,17,20,26H,10H2,1-4H3