Using CCOC(OCC)P(=O)(CCCN)OCC, O=Cc1cc(Cl)cc(Cl)c1 to produce CCOC(OCC)P(=O)(CCCNCc1cc(Cl)cc(Cl)c1)OCC, please predict the solvent for this reaction in SMILES notation in \boxed{$SMILES1, SMILES2, ...} format.