InChI=1/C21H28N4O2/c1-16-5-9-18(10-6-16)23-21(27)15-25(4)14-20(26)22-13-17-7-11-19(12-8-17)24(2)3/h5-12H,13-15H2,1-4H3,(H,22,26)(H,23,27)/p+1/fC21H29N4O2/h22-23,25H/q+1 3A09E2E7D5E09106