Using O=C(CBr)OCc1ccccc1, CC[C@H]1CN(Cc2ccccc2)[C@H](C)CN1 to produce CC[C@H]1CN(Cc2ccccc2)[C@H](C)CN1CC(=O)OCc1ccccc1, please predict the agent for this reaction in SMILES notation in \boxed{$SMILES1, SMILES2, ...} format.