InChI=1/C18H19N5O2/c1-11-9-12(2)23(22-11)18-20-16(10-17(21-18)19-13(3)24)14-5-7-15(25-4)8-6-14/h5-10H,1-4H3,(H,19,20,21,24)/f/h19H 653D34C903F2399F