InChI=1S/C17H22O10/c1-17(8-25-17)9(6-4-2-3-5-7-10(18)19)26-16-13(22)11(20)12(21)14(27-16)15(23)24/h2-7,9,11-14,16,20-22H,8H2,1H3,(H,18,19)(H,23,24)/b3-2-,6-4+,7-5+