InChI=1S/C28H34O15/c29-11-20-23(42-21(35)6-3-14-1-4-16(31)18(33)9-14)24(43-27-25(37)28(38,12-30)13-40-27)22(36)26(41-20)39-8-7-15-2-5-17(32)19(34)10-15/h1-6,9-10,20,22-27,29-34,36-38H,7-8,11-13H2/b6-3-