Using Cc1nc2ccccc2nc1-c1cc2nc(Cl)cc(NC3CCOCC3)n2n1, OB(O)C1=CCCC1 to produce Cc1nc2ccccc2nc1-c1cc2nc(C3=CCCC3)cc(NC3CCOCC3)n2n1, please predict the agent for this reaction in SMILES notation in \boxed{$SMILES1, SMILES2, ...} format.