InChI=1S/C22H30BrN3O4/c1-15-11-16(2)14-26(13-15)22(29)18-12-17(23)3-4-19(18)24-20(27)5-6-21(28)25-7-9-30-10-8-25/h3-4,12,15-16H,5-11,13-14H2,1-2H3,(H,24,27)/t15-,16+