InChI=1/C23H27BrN2O7/c1-4-32-17-7-5-15(6-8-17)19(27)9-10-22(28)26-25-13-16-11-20(30-2)21(12-18(16)24)33-14-23(29)31-3/h5-8,11-13,19,27H,4,9-10,14H2,1-3H3,(H,26,28)/b25-13+/t19-/m1/s1/f/h26H 372AA6DBAEDC48A2