InChI=1/C16H15N3O4/c17-16(18)19-12-5-3-11(4-6-12)15(22)23-13-7-1-10(2-8-13)9-14(20)21/h1-8H,9H2,(H,20,21)(H4,17,18,19)/f/h19H,17-18H2 C39E17C39CFC876F