Using Brc1cccc(-c2ccc3c4c(cccc24)-c2ccccc2-3)c1, CC(C)OB(OC(C)C)OC(C)C to produce OB(O)c1cccc(-c2ccc3c4c(cccc24)-c2ccccc2-3)c1, please predict the agent for this reaction in SMILES notation in \boxed{$SMILES1, SMILES2, ...} format.