Using CCCC(NC(=O)/C(C#N)=C/c1ncc[nH]1)c1ccc(OCOC)cc1 to produce CCCC(NC(=O)/C(C#N)=C/c1ncc[nH]1)c1ccc(O)cc1, please predict the agent for this reaction in SMILES notation in \boxed{$SMILES1, SMILES2, ...} format.