InChI=1S/C30H28O7/c1-13(2)16-11-17-24(33)21-18(31)12-19-14(7-9-29(3,4)36-19)26(21)35-27(17)22-20(16)25(34)28-15(23(22)32)8-10-30(5,6)37-28/h7-10,12,16,31-32,34H,1,11H2,2-6H3