InChI=1S/C17H19NO9/c19-10(5-7-6-18-9-4-2-1-3-8(7)9)16(25)27-17-13(22)11(20)12(21)14(26-17)15(23)24/h1-4,6,10-14,17-22H,5H2,(H,23,24)