Using CCOC(=O)c1cc2c(COC3CCCCO3)cccc2n1Cc1ccc(Cl)c(Cl)c1 to produce CCOC(=O)c1cc2c(CO)cccc2n1Cc1ccc(Cl)c(Cl)c1, please predict the solvent for this reaction in SMILES notation in \boxed{$SMILES1, SMILES2, ...} format.