Using CC(C)(C)OC(=O)N[C@H](CO)C(=O)NCc1ccccc1, COS(=O)(=O)OC to produce COC[C@@H](N)C(=O)NCc1ccccc1, please predict the agent for this reaction in SMILES notation in \boxed{$SMILES1, SMILES2, ...} format.