Using CC(=O)OC(C)=O, CCOP(=O)(CN(c1ccc2c(c1)CCN2)S(=O)(=O)c1cc(Cl)cc(Cl)c1)OCC to produce CCOP(=O)(CN(c1ccc2c(c1)CCN2C(C)=O)S(=O)(=O)c1cc(Cl)cc(Cl)c1)OCC, please predict the solvent for this reaction in SMILES notation in \boxed{$SMILES1, SMILES2, ...} format.