InChI=1S/C30H30O7/c1-13(2)7-8-16-27-15(9-10-30(5,6)37-27)24(33)23-25(34)18-11-17(14(3)4)21-22(29(18)36-28(16)23)19(31)12-20(32)26(21)35/h7,9-10,12,17,31-33,35H,3,8,11H2,1-2,4-6H3