Using CCOC(=O)C(OCC)C(O)c1ccc(OCc2ccccc2)cc1C to produce CCOC(=O)/C(=C/c1ccc(OCc2ccccc2)cc1C)OCC, please predict the solvent for this reaction in SMILES notation in \boxed{$SMILES1, SMILES2, ...} format.