InChI=1S/C37H34O7/c1-44-37-29(22-27-20-24(16-17-32(27)40)19-25-11-5-7-13-30(25)38)35(42)28(21-26-12-6-8-14-31(26)39)36(43)34(37)33(41)18-15-23-9-3-2-4-10-23/h2-14,16-17,20,38-40,42-43H,15,18-19,21-22H2,1H3