Using C=CCBr, COc1ccc(C(O)CN2CCN(C(c3ccccc3)c3ccccc3)CC2)c(O)c1 to produce C=CCOc1cc(OC)ccc1C(O)CN1CCN(C(c2ccccc2)c2ccccc2)CC1, please predict the agent for this reaction in SMILES notation in \boxed{$SMILES1, SMILES2, ...} format.