InChI=1/C21H24N4O/c1-24-18-12-6-5-11-17(18)23-19(24)15-22-20(16-9-3-2-4-10-16)21(26)25-13-7-8-14-25/h2-6,9-12,20,22H,7-8,13-15H2,1H3/t20-/m0/s1 44302976152CE91B