InChI=1/C13H14O5/c1-7-4-9(11(18-3)5-8(7)2)10(13(16)17)6-12(14)15/h4-6H,1-3H3,(H,14,15)(H,16,17)/p-2/b10-6-/fC13H12O5/q-2 63A4E404D2089EBE