Using ClCc1ccc2c(c1)OCO2, CCOC(=O)Cc1ccc(O)cc1 to produce CCOC(=O)Cc1ccc(OCc2ccc3c(c2)OCO3)cc1, please predict the solvent for this reaction in SMILES notation in \boxed{$SMILES1, SMILES2, ...} format.