Using CCOC(=O)C(Cc1ccc(OCCc2ccc(OCc3ccccc3)cc2)cc1)OCC to produce CCOC(=O)C(Cc1ccc(OCCc2ccc(O)cc2)cc1)OCC, please predict the solvent for this reaction in SMILES notation in \boxed{$SMILES1, SMILES2, ...} format.