InChI=1S/C28H30O15/c1-12(30)38-9-20-22(34)23(35)24(43-27-25(36)28(37,10-29)11-39-27)26(42-20)40-15-6-16(32)21-17(33)8-18(41-19(21)7-15)13-2-4-14(31)5-3-13/h2-8,20,22-27,29,31-32,34-37H,9-11H2,1H3