Using COc1ccc(Br)c(O)c1, CC(C)(C)OC(=O)N1CC=CC1CO to produce COc1ccc(Br)c(OCC2C=CCN2C(=O)OC(C)(C)C)c1, please predict the agent for this reaction in SMILES notation in \boxed{$SMILES1, SMILES2, ...} format.