Using COC(=O)[C@@H]1C[C@@H](Oc2cccc(O)n2)CN1C(=O)OC(C)(C)C, C=CCBr to produce C=CCOc1cccc(O[C@@H]2C[C@@H](C(=O)OC)N(C(=O)OC(C)(C)C)C2)n1, please predict the agent for this reaction in SMILES notation in \boxed{$SMILES1, SMILES2, ...} format.