InChI=1/C21H25N5O/c1-21(2,3)16-5-7-17(8-6-16)25-20(27)18-19(24-14-26(18)4)23-13-15-9-11-22-12-10-15/h5-12,14,23H,13H2,1-4H3,(H,25,27)/f/h25H D0DC4C4B1B5374F1