InChI=1S/C26H30O8/c1-15(27)31-18(13-17-7-8-19(28)33-23(17,2)3)24(4)10-6-11-25(5)20(16-9-12-30-14-16)32-22(29)21-26(24,25)34-21/h6-7,9-10,12,14,18,20-21H,8,11,13H2,1-5H3/t18-,20+,21-,24+,25+,26+/m1/s1