Using COC(=O)c1ccc2oc(C)c(C(O)c3ccc(Cl)cc3Cl)c2c1 to produce COC(=O)c1ccc2oc(C)c(Cc3ccc(Cl)cc3Cl)c2c1, please predict the solvent for this reaction in SMILES notation in \boxed{$SMILES1, SMILES2, ...} format.