InChI=1/C17H15N3O4/c21-16(12-7-4-8-13(9-12)20(23)24)18-19-17(22)15-10-14(15)11-5-2-1-3-6-11/h1-9,14-15H,10H2,(H,18,21)(H,19,22)/t14-,15+/m1/s1/f/h18-19H 1D397D8741731E8D