Using Cc1cc(N)ccn1, CCOC(=O)c1nc(C)sc1NC(=O)OC(C)(C)C to produce Cc1cc(NC(=O)c2nc(C)sc2NC(=O)OC(C)(C)C)ccn1, please predict the agent for this reaction in SMILES notation in \boxed{$SMILES1, SMILES2, ...} format.