Using CC(C)(C)OC(=O)C(C)(C)Sc1nc(CCOc2ccc(C(=O)O)cc2)cs1, Nc1ccccc1 to produce CC(C)(C)OC(=O)C(C)(C)Sc1nc(CCOc2ccc(C(=O)Nc3ccccc3)cc2)cs1, please predict the agent for this reaction in SMILES notation in \boxed{$SMILES1, SMILES2, ...} format.