Using CCOC(C)=O, CCOP(=O)(CN(c1ccc2[nH]ccc2c1)S(=O)(=O)c1cc(Cl)cc(Cl)c1)OCC to produce CCOP(=O)(CN(c1ccc2c(ccn2C(C)=O)c1)S(=O)(=O)c1cc(Cl)cc(Cl)c1)OCC, please predict the agent for this reaction in SMILES notation in \boxed{$SMILES1, SMILES2, ...} format.