Using CC(C)(C)OC(=O)N1CC(=O)C1, COP(=O)(Cc1cc2nc(Cl)nc(N3CCOCC3)c2s1)OC to produce CC(C)(C)OC(=O)N1CC(=Cc2cc3nc(Cl)nc(N4CCOCC4)c3s2)C1, please predict the agent for this reaction in SMILES notation in \boxed{$SMILES1, SMILES2, ...} format.