Using O=Cc1ccccc1, COc1ccc(CCNCC(O)COc2ccc(NN)nn2)cc1OC to produce COc1ccc(CCNCC(O)COc2ccc(NN=Cc3ccccc3)nn2)cc1OC, please predict the agent for this reaction in SMILES notation in \boxed{$SMILES1, SMILES2, ...} format.