Using COC(=O)[C@@H]1CC[C@H](NC(=O)OC(C)(C)C)[C@H](NC(=O)c2nc3c(s2)CN(C)CC3)C1, O=C(O)c1cc2cc(F)ccc2[nH]1 to produce COC(=O)[C@@H]1CC[C@H](NC(=O)c2cc3cc(F)ccc3[nH]2)[C@H](NC(=O)c2nc3c(s2)CN(C)CC3)C1, please predict the agent for this reaction in SMILES notation in \boxed{$SMILES1, SMILES2, ...} format.