InChI=1S/C26H34O6/c1-18(2)13-14-30-24-17-31-22-12-11-20(15-23(22)32-26(24,4)5)10-8-9-19(3)21(16-28-6)25(27)29-7/h8-13,15-16,24H,14,17H2,1-7H3/b10-8+,19-9-,21-16+/t24-/m1/s1