Using O=C1CCC(=O)N1Br, COc1cc(F)ccc1-c1nnc(-c2c(-c3ccccc3)noc2C)o1 to produce COc1cc(F)ccc1-c1nnc(-c2c(-c3ccccc3)noc2CO)o1, please predict the agent for this reaction in SMILES notation in \boxed{$SMILES1, SMILES2, ...} format.