Using C#CCBr, CC(C)(C)OC(=O)N1CC2(CCCCCC2)NC(=O)C12CCCC2 to produce C#CCN1C(=O)C2(CCCC2)N(C(=O)OC(C)(C)C)CC12CCCCCC2, please predict the agent for this reaction in SMILES notation in \boxed{$SMILES1, SMILES2, ...} format.