Using CB(O)O, COc1cc2nccc(Oc3cc4ccccc4nc3-c3cc(Br)c(Cl)s3)c2cc1OC to produce COc1cc2nccc(Oc3cc4ccccc4nc3-c3cc(C)c(Cl)s3)c2cc1OC, please predict the agent for this reaction in SMILES notation in \boxed{$SMILES1, SMILES2, ...} format.