InChI=1S/C22H24O6/c1-23-19-6-13(7-20(24-2)22(19)25-3)21-15-8-18-17(27-11-28-18)5-12(15)4-14-9-26-10-16(14)21/h5-8,14,16,21H,4,9-11H2,1-3H3