InChI=1S/C17H17N3O4/c1-23-13-6-5-11(10-14(13)24-2)7-9-20-16(21)15-12(19-17(20)22)4-3-8-18-15/h3-6,8,10H,7,9H2,1-2H3,(H,19,22)