InChI=1S/C26H28O13/c1-26(2)15(39-26)7-11-12(27)8-13(28)16(21(11)35-3)22-17(29)10-5-4-9(6-14(10)37-22)36-25-20(32)18(30)19(31)23(38-25)24(33)34/h4-6,8,15,18-20,22-23,25,27-28,30-32H,7H2,1-3H3,(H,33,34)