InChI=1S/C25H34O7/c1-12(2)22-10-8-20(3)7-9-21(4)14(25(20,22)32-22)6-5-13-15-16(21)29-19-24(15,27)18-23(26,11-28-19)31-17(13)30-18/h5,12,14-19,26-27H,6-11H2,1-4H3/t14-,15+,16-,17+,18-,19-,20-,21+,22+,23-,24+,25+/m0/s1