Using CCOC(=O)C(Cc1ccc(O)cc1)OCC, OCCOC1c2ccccc2C=Cc2ccccc21 to produce CCOC(=O)C(Cc1ccc(OCCOC2c3ccccc3C=Cc3ccccc32)cc1)OCC, please predict the solvent for this reaction in SMILES notation in \boxed{$SMILES1, SMILES2, ...} format.