InChI=1S/C27H28O13/c1-9-5-14(37-26-20(32)18(30)19(31)23(39-26)24(33)34)12(8-28)22-17(9)25(35)38-21-10(2)11(6-16-27(3,4)40-16)13(29)7-15(21)36-22/h5,7-8,16,18-20,23,26,29-32H,6H2,1-4H3,(H,33,34)