Using C[C@H](C[C@@H](Cc1ccc(-c2ccccc2)cc1)NC(=O)c1cc(=O)c(O)co1)C(=O)OCc1ccccc1, O=C([O-])[O-] to produce COc1coc(C(=O)N[C@H](Cc2ccc(-c3ccccc3)cc2)C[C@@H](C)C(=O)OCc2ccccc2)cc1=O, please predict the agent for this reaction in SMILES notation in \boxed{$SMILES1, SMILES2, ...} format.