InChI=1S/C27H48O26/c28-1-5(32)8(33)23(45-4-31)53-25-16(41)11(36)19(7(3-30)47-25)49-27-17(42)12(37)20(22(44)52-27)50-24-15(40)10(35)18(6(2-29)46-24)48-26-14(39)9(34)13(38)21(43)51-26/h5-44H,1-4H2