Using COc1ccc(OC2CCN(c3nc4c(nc3NC3CCC3)CN(Cc3ccccc3)CC4)CC2)c(F)c1 to produce COc1ccc(OC2CCN(c3nc4c(nc3NC3CCC3)CNCC4)CC2)c(F)c1, please predict the agent for this reaction in SMILES notation in \boxed{$SMILES1, SMILES2, ...} format.