Using CI, Cc1cccc(Nc2nccc(-c3ccc(NC(=O)OC(C)(C)C)s3)n2)c1 to produce Cc1cccc(Nc2nccc(-c3ccc(N(C)C(=O)OC(C)(C)C)s3)n2)c1, please predict the agent for this reaction in SMILES notation in \boxed{$SMILES1, SMILES2, ...} format.