InChI=1S/C27H30O7/c1-23(2)11-10-21(28)25(4)26(23,30)13-12-24(3)27(25,31)15-18-20(34-24)14-19(33-22(18)29)16-6-8-17(32-5)9-7-16/h6-11,14,30-31H,12-13,15H2,1-5H3/t24-,25+,26-,27-/m1/s1