Using O=C(c1ccccc1)N1CCN(C2CN(C(=O)c3ccc(C#Cc4ccccc4)s3)C2)CC1 to produce O=C(c1ccccc1)N1CCN(C2CN(C(=O)c3ccc(CCc4ccccc4)s3)C2)CC1, please predict the agent for this reaction in SMILES notation in \boxed{$SMILES1, SMILES2, ...} format.