Using CCOC(=O)CN, COC(=O)c1cc([N+](=O)[O-])c(Cl)s1 to produce CCOC(=O)CNc1sc(C(=O)OC)cc1[N+](=O)[O-], please predict the agent for this reaction in SMILES notation in \boxed{$SMILES1, SMILES2, ...} format.