InChI=1S/C26H32O6/c1-27-21-15-25(31-5)23(29-3)13-19(21)11-9-17-7-8-18(17)10-12-20-14-24(30-4)26(32-6)16-22(20)28-2/h9-18H,7-8H2,1-6H3/b11-9-,12-10-/t17-,18+