Using CCOC(=O)/C=C/c1ccc(COc2ccc(C(=O)c3ccc(OC4CCCC4)cc3O)cc2CCC(=O)OC)cc1 to produce O=C(O)/C=C/c1ccc(COc2ccc(C(=O)c3ccc(OC4CCCC4)cc3O)cc2CCC(=O)O)cc1, please predict the solvent for this reaction in SMILES notation in \boxed{$SMILES1, SMILES2, ...} format.