InChI=1S/C33H34O9/c1-16(2)8-9-18-11-19(34)12-21-23(15-33(4,5)42-31(18)21)26-17(3)10-24(35)28(29(26)37)30(38)27-22(32(39)41-7)13-20(40-6)14-25(27)36/h8,10-15,34-37H,9H2,1-7H3