InChI=1/C15H22N4O2/c1-2-21-11-5-8-17-15-18-13-7-4-3-6-12(13)14(19-15)16-9-10-20/h3-4,6-7,20H,2,5,8-11H2,1H3,(H2,16,17,18,19)/p+1/fC15H23N4O2/h16-18H/q+1 E8194EE1FF401E37