InChI=1S/C23H22O6/c1-11(2)5-6-12-18(26)17-19(27)16-14(24)7-8-15(25)22(16)28-21(17)13-9-10-23(3,4)29-20(12)13/h5,7-10,24-26H,6H2,1-4H3