Using COC(=O)[C@H](C)NC(=O)N1CCN(c2cc(N)nc3cc(Cl)ccc23)CC1 to produce C[C@H](NC(=O)N1CCN(c2cc(N)nc3cc(Cl)ccc23)CC1)C(=O)O, please predict the agent for this reaction in SMILES notation in \boxed{$SMILES1, SMILES2, ...} format.