InChI=1S/C17H20O10/c18-10(19)7-9(6-8-4-2-1-3-5-8)16(25)27-17-13(22)11(20)12(21)14(26-17)15(23)24/h1-5,9,11-14,17,20-22H,6-7H2,(H,18,19)(H,23,24)