Using O=C([O-])[O-], Cc1ccccc1[C@@H](CC(=O)c1ccn[nH]c1=O)c1ccc(Br)cc1 to produce Cc1ccccc1[C@@H](CC(=O)c1ccnn(C)c1=O)c1ccc(Br)cc1, please predict the agent for this reaction in SMILES notation in \boxed{$SMILES1, SMILES2, ...} format.