Using C[C@H](N)C(=O)N(CCC(=O)O)C1Cc2ccccc2C1, CCOC(=O)C(=O)CCc1ccccc1 to produce CCOC(=O)C(CCc1ccccc1)N[C@@H](C)C(=O)N(CCC(=O)O)C1Cc2ccccc2C1, please predict the agent for this reaction in SMILES notation in \boxed{$SMILES1, SMILES2, ...} format.