Using C=CCBr, COC(=O)c1ccc(C)c(NC(=O)c2cc(OC)ccc2Br)c1 to produce C=CCN(C(=O)c1cc(OC)ccc1Br)c1cc(C(=O)OC)ccc1C, please predict the agent for this reaction in SMILES notation in \boxed{$SMILES1, SMILES2, ...} format.