InChI=1S/C17H20O11/c1-25-8-5-7(6-9(26-2)11(8)19)3-4-10(18)27-17-14(22)12(20)13(21)15(28-17)16(23)24/h3-6,12-15,17,19-22H,1-2H3,(H,23,24)/b4-3+/t12-,13-,14+,15-,17+/m0/s1