InChI=1/C18H21N5/c1-2-3-18-17(13-19)21-22-23(18)16-6-4-14(5-7-16)12-15-8-10-20-11-9-15/h4-11H,2-3,12-13,19H2,1H3/p+1/fC18H22N5/h19H/q+1 AA44AD6E1EE119D9