InChI=1/C22H28N4O2/c1-16(2)28-15-18-9-4-3-8-17(18)14-24-22(27)23-13-7-12-21-25-19-10-5-6-11-20(19)26-21/h3-6,8-11,16H,7,12-15H2,1-2H3,(H,25,26)(H2,23,24,27)/f/h23-25H 7D8F7D23540510B9