InChI=1/C16H19BrN2O3/c17-13-9-7-12(8-10-13)16-18-11-14(22-16)5-3-1-2-4-6-15(20)19-21/h7-11,21H,1-6H2,(H,19,20)/f/h19H 1BA885DFFCDA988A