Using CCOC(=O)c1sc2nc(C)[nH]c(=O)c2c1C, ClCc1ccccc1 to produce CCOC(=O)c1sc2nc(C)n(Cc3ccccc3)c(=O)c2c1C, please predict the agent for this reaction in SMILES notation in \boxed{$SMILES1, SMILES2, ...} format.