Using COc1ccc(CS[C@@H]2C[C@@H](C(=O)O)N(C(=O)OC(C)(C)C)C2)cc1, CNOC to produce COc1ccc(CS[C@@H]2C[C@@H](C(=O)N(C)OC)N(C(=O)OC(C)(C)C)C2)cc1, please predict the agent for this reaction in SMILES notation in \boxed{$SMILES1, SMILES2, ...} format.