InChI=1S/C26H28O6/c1-14(2)6-8-17-20(27)11-10-16(24(17)28)19-13-32-22-12-21(31-5)18(9-7-15(3)4)25(29)23(22)26(19)30/h6-7,10-13,27-29H,8-9H2,1-5H3