Using COC(=O)Cl, CC[C@H](C)[C@H](N)C(=O)N1CCC[C@H]1C#N to produce CC[C@H](C)[C@H](NC(=O)OC)C(=O)N1CCC[C@H]1C#N, please predict the agent for this reaction in SMILES notation in \boxed{$SMILES1, SMILES2, ...} format.