Using COC(=O)CN, O=C(O)C(C(=O)c1ccc2c(c1)OCO2)=C1SC=CS1 to produce COC(=O)CNC(=O)C(C(=O)c1ccc2c(c1)OCO2)=C1SC=CS1, please predict the agent for this reaction in SMILES notation in \boxed{$SMILES1, SMILES2, ...} format.