Using C#CCBr, CCOC(=O)c1cc(O)nn1-c1ncc(Cl)cc1Cl to produce C#CCOc1cc(C(=O)OCC)n(-c2ncc(Cl)cc2Cl)n1, please predict the agent for this reaction in SMILES notation in \boxed{$SMILES1, SMILES2, ...} format.