InChI=1/C22H28N4O4/c27-12-8-25(9-13-28)20-7-6-18-19(17-4-2-1-3-5-17)16-21(24-22(18)23-20)26(10-14-29)11-15-30/h1-7,16,27-30H,8-15H2 1929D73BE82C74B5