Using CCOC(=O)C1CCc2c([nH]c3ccc(Cl)cc23)C1, O=C(Cl)c1ccc(Cl)cc1 to produce CCOC(=O)C1CCc2c(n(C(=O)c3ccc(Cl)cc3)c3ccc(Cl)cc23)C1, please predict the solvent for this reaction in SMILES notation in \boxed{$SMILES1, SMILES2, ...} format.