InChI=1S/C25H42O7/c1-5-6-7-8-16(2)13-17(3)9-10-18-11-12-19(20(14-18)30-4)31-25-24(29)23(28)22(27)21(15-26)32-25/h11-12,14,16-17,21-29H,5-10,13,15H2,1-4H3/t16?,17?,21-,22-,23+,24-,25-/m1/s1