InChI=1S/C23H22O7/c1-11(2)16-7-13-15(29-16)6-5-12-21(13)30-20-10-28-17-9-19(27-4)18(26-3)8-14(17)23(20,25)22(12)24/h5-6,8-9,16,20,25H,1,7,10H2,2-4H3/t16-,20-,23-/m1/s1