Using COC(=O)C(=O)OC, CC(=O)C1(Cc2ccc(Cl)cc2)CCN(Cc2ccccc2)CC1 to produce O=C(O)C(=O)CC(=O)C1(Cc2ccc(Cl)cc2)CCN(Cc2ccccc2)CC1, please predict the solvent for this reaction in SMILES notation in \boxed{$SMILES1, SMILES2, ...} format.