Using COC(=O)c1ccc2cc(C)c(C(=O)c3ccc(Cl)cc3Cl)n2c1 to produce COC(=O)c1ccc2cc(C)c(Cc3ccc(Cl)cc3Cl)n2c1, please predict the solvent for this reaction in SMILES notation in \boxed{$SMILES1, SMILES2, ...} format.