Using COC(=O)CC1C(C)=NN(c2ccc(Cl)nn2)C1(O)c1ccccc1 to produce COC(=O)Cc1c(C)nn(-c2ccc(Cl)nn2)c1-c1ccccc1, please predict the agent for this reaction in SMILES notation in \boxed{$SMILES1, SMILES2, ...} format.