Using CSc1ncc2c(n1)CCN(c1cccc(C(=O)O)n1)C2, CC(C)c1ccc(N)cc1 to produce CSc1ncc2c(n1)CCN(c1cccc(C(=O)Nc3ccc(C(C)C)cc3)n1)C2, please predict the agent for this reaction in SMILES notation in \boxed{$SMILES1, SMILES2, ...} format.