Using COC(=O)c1ccc(COc2ccccc2)cc1Cc1ccc2ccccc2c1 to produce OCc1ccc(COc2ccccc2)cc1Cc1ccc2ccccc2c1, please predict the solvent for this reaction in SMILES notation in \boxed{$SMILES1, SMILES2, ...} format.