InChI=1/C15H21BrN2O2/c1-11(2)10-20-14-6-4-13(5-7-14)9-18-15(19)17-8-12(3)16/h4-7,11H,3,8-10H2,1-2H3,(H2,17,18,19)/f/h17-18H 7CB7BBDBB1392308