InChI=1S/C17H19NO8/c19-11(6-5-9-7-8-3-1-2-4-10(8)18-9)25-17-14(22)12(20)13(21)15(26-17)16(23)24/h1-4,7,12-15,17-18,20-22H,5-6H2,(H,23,24)