InChI=1/C18H21N5/c1-22(2)16-9-7-14(8-10-16)12-15(13-19)18-21-20-17-6-4-3-5-11-23(17)18/h7-10,12H,3-6,11H2,1-2H3/b15-12+ D4B6177ED34B36D9