InChI=1S/C17H22N2O7/c1-2-5-10(15-18-8-6-3-4-7-9(8)19-15)25-17-13(22)11(20)12(21)14(26-17)16(23)24/h3-4,6-7,10-14,17,20-22H,2,5H2,1H3,(H,18,19)(H,23,24)