InChI=1/C18H21N5O2/c1-23-8-6-12(7-9-23)10-17-19-18(25-22-17)15-11-14(20-21-15)13-4-2-3-5-16(13)24/h2-5,11-12,24H,6-10H2,1H3,(H,20,21)/p+1/fC18H22N5O2/h21,23H/q+1 E83899A734E3ACF6