Using CCS(=O)(=O)N[C@@H](C)C(=O)N1CCC[C@H]1C(=O)OC(C)(C)C to produce CCS(=O)(=O)N[C@@H](C)C(=O)N1CCC[C@H]1C(=O)[O-], please predict the agent for this reaction in SMILES notation in \boxed{$SMILES1, SMILES2, ...} format.