InChI=1/C21H28N4O3/c1-16-6-8-17(9-7-16)18(25-12-2-3-13-25)15-24-21(27)23-11-10-22-20(26)19-5-4-14-28-19/h4-9,14,18H,2-3,10-13,15H2,1H3,(H,22,26)(H2,23,24,27)/p+1/t18-/m1/s1/fC21H29N4O3/h22-25H/q+1 DB2DE0DD408CB34E