Using CCCCBr, O=C(c1ccc(O)nc1)N1CCC[C@H]1CN1CCCC1 to produce CCCCOc1ccc(C(=O)N2CCC[C@H]2CN2CCCC2)cn1, please predict the agent for this reaction in SMILES notation in \boxed{$SMILES1, SMILES2, ...} format.