InChI=1S/C27H30O13/c1-27(2,26(34)35)8-5-13(12-38-25-21(31)19(29)20(30)23(40-25)24(32)33)6-9-37-22-14-3-4-18(28)39-17(14)11-16-15(22)7-10-36-16/h3-4,6-7,10-11,19-21,23,25,29-31H,5,8-9,12H2,1-2H3,(H,32,33)(H,34,35)/b13-6-