Using CC1(C)CN(C2COC2)CCN1, O=C(O)c1nc2c(N3CCOCC3)nc(Cl)nc2s1 to produce CC1(C)CN(C2COC2)CCN1C(=O)c1nc2c(N3CCOCC3)nc(Cl)nc2s1, please predict the agent for this reaction in SMILES notation in \boxed{$SMILES1, SMILES2, ...} format.