InChI=1/C20H28N4O4/c1-14-17(10-5-11-18(14)24(27)28)22-20(26)19(25)21-15-7-6-12-23(13-15)16-8-3-2-4-9-16/h5,10-11,15-16H,2-4,6-9,12-13H2,1H3,(H,21,25)(H,22,26)/p+1/t15-/m0/s1/fC20H29N4O4/h21-23H/q+1 917C311DD1930223