InChI=1S/C27H30O7/c1-23(2)21(28)10-11-24(3)26(23,30)13-12-25(4)27(24,31)15-18-20(34-25)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-/m0/s1