Using CC1(C)OB(c2ccc3ncoc3c2)OC1(C)C, COC(=O)c1nc(Br)cc(N)c1Cl to produce COC(=O)c1nc(-c2ccc3ncoc3c2)cc(N)c1Cl, please predict the agent for this reaction in SMILES notation in \boxed{$SMILES1, SMILES2, ...} format.