Using NC(=O)CCC(=O)NBr, COc1cccc(-c2c(C)c(Cc3ccccc3F)nn(CCO)c2=O)c1 to produce COc1cccc(-c2c(C)c(Cc3ccccc3F)nn(CCBr)c2=O)c1, please predict the agent for this reaction in SMILES notation in \boxed{$SMILES1, SMILES2, ...} format.