Using CON=C(C(=O)NC1C(=O)N2C(C(=O)O)=CCS[C@H]12)C1(C)OCCO1 to produce CON=C(C(C)=O)C(=O)NC1C(=O)N2C(C(=O)O)=CCS[C@H]12, please predict the agent for this reaction in SMILES notation in \boxed{$SMILES1, SMILES2, ...} format.