InChI=1/C20H28N4O4/c1-14-5-6-16(15(2)12-14)21-20(27)22-18(25)13-23-7-9-24(10-8-23)19(26)17-4-3-11-28-17/h5-6,12,17H,3-4,7-11,13H2,1-2H3,(H2,21,22,25,27)/t17-/m1/s1/f/h21-22H 3DC1D4BEA92A5B79