Using CCCCCCCCCCCCCCCCCC(=O)O, O=C1CCc2ccc(OCCCCN3CCN(c4cccc5sccc45)CC3)cc2N1CO to produce CCCCCCCCCCCCCCCCCC(=O)OCN1C(=O)CCc2ccc(OCCCCN3CCN(c4cccc5sccc45)CC3)cc21, please predict the agent for this reaction in SMILES notation in \boxed{$SMILES1, SMILES2, ...} format.