Using O=Cc1cc2nc(Cl)nc(N3CCOCC3)c2s1, CN1CCC2(CC1)CNC2 to produce CN1CCC2(CC1)CN(Cc1cc3nc(Cl)nc(N4CCOCC4)c3s1)C2, please predict the agent for this reaction in SMILES notation in \boxed{$SMILES1, SMILES2, ...} format.