Using C1CNNC1, CSc1nccc(C(=O)C(Cc2ccccc2Cl)C(=O)OC(C)(C)C)n1 to produce CSc1nccc(-c2c(Cc3ccccc3Cl)c(=O)n3n2CCC3)n1, please predict the agent for this reaction in SMILES notation in \boxed{$SMILES1, SMILES2, ...} format.