InChI=1S/C17H20O10/c1-25-10-4-2-8(3-5-10)6-9(15(21)22)7-26-17-13(20)11(18)12(19)14(27-17)16(23)24/h2-6,11-14,17-20H,7H2,1H3,(H,21,22)(H,23,24)