Using Cc1nsc(N)c1Cl, COC(=O)C(C)c1ccc2oc(CC(C)(C)C)nc2c1 to produce Cc1nsc(NC(=O)C(C)c2ccc3oc(CC(C)(C)C)nc3c2)c1Cl, please predict the agent for this reaction in SMILES notation in \boxed{$SMILES1, SMILES2, ...} format.