Using COC(=O)CBr, CC#CCn1c(N2CCN(C(=O)OC(C)(C)C)CC2)nc2[nH]c(=O)[nH]c(=O)c21 to produce CC#CCn1c(N2CCN(C(=O)OC(C)(C)C)CC2)nc2c1c(=O)[nH]c(=O)n2CC(=O)OC, please predict the agent for this reaction in SMILES notation in \boxed{$SMILES1, SMILES2, ...} format.