InChI=1S/C38H60O19/c1-7-38(6,57-36-30(47)26(43)28(45)31(56-36)33(48)49)13-9-12-17(2)10-8-11-18(3)14-21(39)15-19(4)34(50)55-32-27(44)23(40)20(5)53-37(32)52-16-22-24(41)25(42)29(46)35(51)54-22/h7,11-12,15,20-32,35-37,39-47,51H,1,8-10,13-14,16H2,2-6H3,(H,48,49)/b17-12-,18-11-,19-15-