Using Clc1nc(N2CCOCC2)c2cccc(Br)c2n1, OB(O)c1cccc(O)c1 to produce Oc1cccc(-c2cccc3c(N4CCOCC4)nc(Cl)nc23)c1, please predict the agent for this reaction in SMILES notation in \boxed{$SMILES1, SMILES2, ...} format.