Using O=C(OCC1c2ccccc2-c2ccccc21)N1CCN(Cc2ccc(/C=C/COc3ccc(Br)cn3)cc2)CC1 to produce Brc1ccc(OC/C=C/c2ccc(CN3CCNCC3)cc2)nc1, please predict the agent for this reaction in SMILES notation in \boxed{$SMILES1, SMILES2, ...} format.