InChI=1/C18H25N5O4/c1-19-16(24)12-23-10-14(8-20-23)21-17(25)11-22(2)9-13-6-5-7-15(26-3)18(13)27-4/h5-8,10H,9,11-12H2,1-4H3,(H,19,24)(H,21,25)/p+1/fC18H26N5O4/h19,21-22H/q+1 A718642B7FF1BFE0