Using COc1ccc(Cn2nc(C#Cc3cnc4ccc(Cl)cc4n3)nc2N2CCCC2)cc1 to produce COc1ccc(Cn2nc(CCc3cnc4ccc(Cl)cc4n3)nc2N2CCCC2)cc1, please predict the agent for this reaction in SMILES notation in \boxed{$SMILES1, SMILES2, ...} format.