Using CSc1ccc(CBr)cc1, OC[C@@H]1C[C@@H]1C1CCN(c2ncc(Br)cn2)CC1 to produce CSc1ccc(COC[C@@H]2C[C@@H]2C2CCN(c3ncc(Br)cn3)CC2)cc1, please predict the agent for this reaction in SMILES notation in \boxed{$SMILES1, SMILES2, ...} format.