InChI=1/C18H17N5O4/c1-10-16(12(3)24)11(2)20-17(10)18(25)21-15-8-9-19-22(15)13-4-6-14(7-5-13)23(26)27/h4-9,20H,1-3H3,(H,21,25)/f/h21H 24E3E725BF09522B