Using CCCC(CCC)(C(=O)Cl)c1ccccc1, CCOC(=O)CC(=O)OCC to produce CCCC(CCC)(C(=O)C(C(=O)OCC)C(=O)OCC)c1ccccc1, please predict the agent for this reaction in SMILES notation in \boxed{$SMILES1, SMILES2, ...} format.