InChI=1/C19H28BrN5O3/c1-14(2)11-21-17(26)12-24-7-9-25(10-8-24)13-18(27)23-19(28)22-16-5-3-15(20)4-6-16/h3-6,14H,7-13H2,1-2H3,(H,21,26)(H2,22,23,27,28)/f/h21-23H 2C4F4B45E53112ED