Using CCOC(=O)c1cnc(N2CC[C@H](NC(=O)c3ncc[nH]3)[C@H](OCc3ccccc3)C2)s1 to produce O=C(N[C@H]1CCN(c2ncc(C(=O)O)s2)C[C@H]1OCc1ccccc1)c1ncc[nH]1, please predict the agent for this reaction in SMILES notation in \boxed{$SMILES1, SMILES2, ...} format.