Using COc1ccc(OC2CCN(c3nc4c(nc3NC(C)C)CCN(Cc3ccccc3)C4)CC2)c(F)c1 to produce COc1ccc(OC2CCN(c3nc4c(nc3NC(C)C)CCNC4)CC2)c(F)c1, please predict the agent for this reaction in SMILES notation in \boxed{$SMILES1, SMILES2, ...} format.