Using Brc1ccc2c3ccccc3c3ccccc3c2c1, OB(O)c1cccc2c1sc1ccccc12 to produce c1ccc2c(c1)sc1c(-c3ccc4c5ccccc5c5ccccc5c4c3)cccc12, please predict the agent for this reaction in SMILES notation in \boxed{$SMILES1, SMILES2, ...} format.