Using CCOCc1nc2cnc3cc(Br)cnc3c2n1CCCO, O=C1c2ccccc2C(=O)N1O to produce CCOCc1nc2cnc3cc(Br)cnc3c2n1CCCON1C(=O)c2ccccc2C1=O, please predict the agent for this reaction in SMILES notation in \boxed{$SMILES1, SMILES2, ...} format.