Using CCN(CC)c1nc(CO)cs1, COC(=O)[C@](N)(N=C=O)C(C)C to produce CCN(CC)c1nc(COC(=O)N[C@H](C(=O)OC)C(C)C)cs1, please predict the agent for this reaction in SMILES notation in \boxed{$SMILES1, SMILES2, ...} format.