InChI=1/C21H26BrN3O4/c1-2-3-13-29-14-7-12-23-20(16-8-5-4-6-9-16)21(26)24-19-11-10-17(25(27)28)15-18(19)22/h4-6,8-11,15,20,23H,2-3,7,12-14H2,1H3,(H,24,26)/t20-/m0/s1/f/h24H A6C85FE6052A81C2