InChI=1S/C23H22O5/c1-13(2)6-5-10-23(3)11-9-14-18(28-23)12-17(25)19-20(26)15-7-4-8-16(24)21(15)27-22(14)19/h4,6-9,11-12,24-25H,5,10H2,1-3H3