InChI=1/C21H26N4O3/c1-3-5-10-23-20(26)14-28-19-7-6-11-25-13-17(24-21(19)25)15-8-9-18(27-4-2)16(22)12-15/h6-9,11-13H,3-5,10,14,22H2,1-2H3,(H,23,26)/f/h23H 9EC92A9B9DDFDC6A