Using COc1ccc(CCBr)cc1, O=C(c1nc2ccccc2s1)C1CCNCC1 to produce COc1ccc(CCN2CCC(C(=O)c3nc4ccccc4s3)CC2)cc1, please predict the agent for this reaction in SMILES notation in \boxed{$SMILES1, SMILES2, ...} format.