Using Cn1nccc1-c1cc(C(=O)O)cs1, CC(C)(C)OC(=O)NCC(N)c1cccc2ccccc12 to produce Cn1nccc1-c1cc(C(=O)NC(CNC(=O)OC(C)(C)C)c2cccc3ccccc23)cs1, please predict the agent for this reaction in SMILES notation in \boxed{$SMILES1, SMILES2, ...} format.