Using CCCCn1ccc(-c2ccc(C3(COC4CCCCO4)CCOCC3)cc2)c(Cl)c1=O to produce CCCCn1ccc(-c2ccc(C3(CO)CCOCC3)cc2)c(Cl)c1=O, please predict the solvent for this reaction in SMILES notation in \boxed{$SMILES1, SMILES2, ...} format.