Using Cc1ccc2c(c1)c1c(n2-c2cccc(Br)c2)CCN(C)C1, OB(O)c1cc2ccccc2s1 to produce Cc1ccc2c(c1)c1c(n2-c2cccc(-c3cc4ccccc4s3)c2)CCN(C)C1, please predict the agent for this reaction in SMILES notation in \boxed{$SMILES1, SMILES2, ...} format.