Using CCOC(=O)C(=CC1(OC)C=C2OCOC2=CC1)C(=O)OCC to produce CCOC(=O)C(CC1(OC)C=C2OCOC2=CC1)C(=O)OCC, please predict the solvent for this reaction in SMILES notation in \boxed{$SMILES1, SMILES2, ...} format.