Using N#Cc1cccc(C(=O)Cl)c1, NCc1cccc2c1CN(C1CCC(=O)NC1=O)C2=O to produce N#Cc1cccc(C(=O)NCc2cccc3c2CN(C2CCC(=O)NC2=O)C3=O)c1, please predict the agent for this reaction in SMILES notation in \boxed{$SMILES1, SMILES2, ...} format.