Using O=C(CBr)N1C=C2CC=CC=C2Oc2ccccc21, COC(=O)c1ccc(O)cc1 to produce COC(=O)c1ccc(OCC(=O)N2C=C3CC=CC=C3Oc3ccccc32)cc1, please predict the agent for this reaction in SMILES notation in \boxed{$SMILES1, SMILES2, ...} format.