Using COC(=O)Nc1ccc(OCc2nc3ccccc3s2)cc1C, CC(C)=O to produce COC(=O)N(CO)c1ccc(OCc2nc3ccccc3s2)cc1C, please predict the agent for this reaction in SMILES notation in \boxed{$SMILES1, SMILES2, ...} format.