InChI=1S/C31H34O11/c1-14(2)10-11-17-23(34)22(19(32)12-15(3)4)28(41-31-26(37)24(35)25(36)29(42-31)30(38)39)21-18(13-20(33)40-27(17)21)16-8-6-5-7-9-16/h5-10,13,15,24-26,29,31,34-37H,11-12H2,1-4H3,(H,38,39)