InChI=1/C18H19N3O5/c1-2-26-15-10-6-4-8-13(15)17(24)19-11-16(23)20-21-18(25)12-7-3-5-9-14(12)22/h3-10,22H,2,11H2,1H3,(H,19,24)(H,20,23)(H,21,25)/f/h19-21H AB7F8ACC82C18FEE