Using COC(=O)[C@H](C)N1CC[C@@]2(CCCN2C(=O)OC(C)(C)C)C1=O, OCC=CCBr to produce COC(=O)C(C)N1CCC2(CCCN2CC=CCO)C1=O, please predict the agent for this reaction in SMILES notation in \boxed{$SMILES1, SMILES2, ...} format.