Using C=O, C=CCN(C)CCCCCCOc1ccc2c(c1)CCNC2c1ccc(Br)cc1 to produce C=CCN(C)CCCCCCOc1ccc2c(c1)CCN(C)C2c1ccc(Br)cc1, please predict the agent for this reaction in SMILES notation in \boxed{$SMILES1, SMILES2, ...} format.