InChI=1S/C27H30O14/c1-5-11(2)25(35)39-21-16-13(8-6-12-7-9-14(28)38-20(12)16)37-23(21)27(3,4)41-15(29)10-36-26-19(32)17(30)18(31)22(40-26)24(33)34/h5-9,17-19,21-23,26,30-32H,10H2,1-4H3,(H,33,34)/b11-5+