Using O=c1cc(N2CCOCC2)oc2c(Br)csc12, OB(O)c1ccccc1 to produce O=c1cc(N2CCOCC2)oc2c(-c3ccccc3)csc12, please predict the agent for this reaction in SMILES notation in \boxed{$SMILES1, SMILES2, ...} format.