Using CCOC(=O)C(=Cc1c(OC)ccc2ccccc12)C(=O)OCC to produce CCOC(=O)C(Cc1c(OC)ccc2ccccc12)C(=O)OCC, please predict the solvent for this reaction in SMILES notation in \boxed{$SMILES1, SMILES2, ...} format.