InChI=1S/C33H38O20/c34-8-17-20(37)22(39)26(43)31(50-17)48-12-3-1-11(2-4-12)15-10-47-16-7-13(5-6-14(16)19(15)36)49-33-29(24(41)21(38)18(9-35)51-33)53-32-27(44)23(40)25(42)28(52-32)30(45)46/h1-7,10,17-18,20-29,31-35,37-44H,8-9H2,(H,45,46)