InChI=1S/C24H24O4/c1-3-4-5-6-7-8-9-10-11-12-13-14-19-28-24(26)18-16-21-15-17-22(25)23(20-21)27-2/h3-4,9-12,15-18,20,25H,13-14,19H2,1-2H3