Using CCOB(OCC)OCC, Brc1cccc2c1C[C@H](N(Cc1ccccc1)Cc1ccccc1)CC2 to produce OB(O)c1cccc2c1C[C@H](N(Cc1ccccc1)Cc1ccccc1)CC2, please predict the agent for this reaction in SMILES notation in \boxed{$SMILES1, SMILES2, ...} format.