Using O=C1OC2(CCNCC2)c2ccccc21, Fc1ccc(C(CCCCl)c2ccc(F)cc2)cc1 to produce O=C1OC2(CCN(CCCC(c3ccc(F)cc3)c3ccc(F)cc3)CC2)c2ccccc21, please predict the agent for this reaction in SMILES notation in \boxed{$SMILES1, SMILES2, ...} format.