InChI=1/C22H28N4O4/c1-4-13-25(15-21(27)23-19-11-7-5-9-17(19)2)16-22(28)24(3)14-18-10-6-8-12-20(18)26(29)30/h5-12H,4,13-16H2,1-3H3,(H,23,27)/p+1/fC22H29N4O4/h23,25H/q+1 37946B5AECA5D20A