InChI=1/C21H26N4O3/c1-28-21(27)24-23-20(26)22-14-18-6-2-3-7-19(18)17-10-8-16(9-11-17)15-25-12-4-5-13-25/h2-3,6-11H,4-5,12-15H2,1H3,(H,24,27)(H2,22,23,26)/p+1/fC21H27N4O3/h22-25H/q+1 4F81AFFE2115B040