Using CN(C(=O)OC(C)(C)C)[C@H](Cc1ccc2ccccc2c1)C(=O)O, NC(=S)[C@H](N)Cc1ccc2ccccc2c1 to produce CN(C(=O)OC(C)(C)C)[C@H](Cc1ccc2ccccc2c1)C(=O)N[C@H](Cc1ccc2ccccc2c1)C(N)=S, please predict the agent for this reaction in SMILES notation in \boxed{$SMILES1, SMILES2, ...} format.