Using ClCCCCBr, CCCCCCCCCCCCCCCCCCOC(=O)N1CCCCC1CCO to produce CCCCCCCCCCCCCCCCCCOC(=O)N1CCCCC1CCOCCCCCl, please predict the solvent for this reaction in SMILES notation in \boxed{$SMILES1, SMILES2, ...} format.