InChI=1/C21H29N5O/c1-21(2,3)19-15-12-26(9-8-18(15)24-25-19)20(27)16(22)10-13-11-23-17-7-5-4-6-14(13)17/h4-7,16,19,24-25H,8-12,22H2,1-3H3/p+2/t16-,19-/m1/s1/fC21H31N5O/h22-23H/q+2 3D4C3372D3A37E36