Using CCOC(=O)C(=Cc1ccc(OC)c(C(=O)OCc2ccccc2)c1)OCC to produce CCOC(=O)C(Cc1ccc(OC)c(C(=O)O)c1)OCC, please predict the solvent for this reaction in SMILES notation in \boxed{$SMILES1, SMILES2, ...} format.