Using OC1CCN(C2CNC2)CC1, O=Cc1cc2nc(Cl)nc(N3CCOCC3)c2s1 to produce OC1CCN(C2CN(Cc3cc4nc(Cl)nc(N5CCOCC5)c4s3)C2)CC1, please predict the agent for this reaction in SMILES notation in \boxed{$SMILES1, SMILES2, ...} format.