Using O=C(Cl)N(c1ccccc1)c1ccccc1, COC(=O)COc1cccc(CO)c1Cl to produce COC(=O)COc1cccc(COC(=O)N(c2ccccc2)c2ccccc2)c1Cl, please predict the agent for this reaction in SMILES notation in \boxed{$SMILES1, SMILES2, ...} format.