InChI=1/C16H17N3O4/c1-10-5-18-14(6-17-10)16(20)19-13-3-11(7-21-2)15-12(4-13)8-22-9-23-15/h3-6H,7-9H2,1-2H3,(H,19,20)/f/h19H 9D265E7D71897D80