InChI=1/C18H19N5O4/c1-11-14(18(26)23-15(20-11)8-9-19-23)10-16(24)21-13-6-4-12(5-7-13)17(25)22(2)27-3/h4-9,20H,10H2,1-3H3,(H,21,24)/f/h21H EFA5B739C16CF272