InChI=1/C16H21N5O4/c1-16(2,3)14(24)18-7-12(22)17-8-13(23)19-9-4-5-10-11(6-9)21-15(25)20-10/h4-6H,7-8H2,1-3H3,(H,17,22)(H,18,24)(H,19,23)(H2,20,21,25)/f/h17-21H A17133EF9934C16C