InChI=1/C20H26BrN3O4/c1-3-11-28-20-18(21)12-15(13-19(20)27-4-2)14-22-9-10-23-16-5-7-17(8-6-16)24(25)26/h5-8,12-13,22-23H,3-4,9-11,14H2,1-2H3/p+1/fC20H27BrN3O4/h22H/q+1 3EF57BEB8C82666F