Using COC(=O)[C@@H]1[C@@H](C)OC[C@@]1(N)c1ccccc1F, CNC(=S)NC(=O)OC(C)(C)C to produce C[C@H]1OC[C@]2(c3ccccc3F)N=C(NC(=O)OC(C)(C)C)N(C)C(=O)[C@H]12, please predict the agent for this reaction in SMILES notation in \boxed{$SMILES1, SMILES2, ...} format.