Using COc1cccc(C(=O)COc2ccc(/C=C3\SC(=O)NC3=O)cc2)c1, NO to produce COc1cccc(C(COc2ccc(/C=C3\SC(=O)NC3=O)cc2)=NO)c1, please predict the agent for this reaction in SMILES notation in \boxed{$SMILES1, SMILES2, ...} format.