Using CCOC(=O)C(=O)c1ccc(O)cc1, O=C(CCl)C1CCCCCCC1 to produce CCOC(=O)C(=O)c1ccc(OCC(=O)C2CCCCCCC2)cc1, please predict the agent for this reaction in SMILES notation in \boxed{$SMILES1, SMILES2, ...} format.