InChI=1/C21H26N4O3/c1-23-11-13-25(14-12-23)20(26)17-7-9-24(10-8-17)21(27)18-15-19(28-22-18)16-5-3-2-4-6-16/h2-6,15,17H,7-14H2,1H3/p+1/fC21H27N4O3/h23H/q+1 87A3434F805B66DD