Using CNc1ccccc1-c1ccnc2c(C#N)c(-c3ccc(Oc4ccccc4)cc3)nn12 to produce CNc1ccccc1C1CCNc2c(C#N)c(-c3ccc(Oc4ccccc4)cc3)nn21, please predict the agent for this reaction in SMILES notation in \boxed{$SMILES1, SMILES2, ...} format.