InChI=1/C16H19N3O7/c1-26-11-4-2-10(3-5-11)19-14(24)12(13(23)18-15(19)25)6-17-16(7-20,8-21)9-22/h2-6,17,20-22H,7-9H2,1H3,(H,18,23,25)/b12-6+/f/h18H 3A2736E6B4F065C1