Using COc1cc(C(=O)c2ccc(Cl)cc2)ccc1[N+](=O)[O-], OCCO to produce COc1cc(C2(c3ccc(Cl)cc3)OCCO2)ccc1[N+](=O)[O-], please predict the agent for this reaction in SMILES notation in \boxed{$SMILES1, SMILES2, ...} format.