Using COC(=O)[C@](N)(N=C=O)C(C)C, CN(C)c1nc(CO)cs1 to produce COC(=O)[C@@H](NC(=O)OCc1csc(N(C)C)n1)C(C)C, please predict the agent for this reaction in SMILES notation in \boxed{$SMILES1, SMILES2, ...} format.