Using BrCc1ccccc1, CCOC(=O)c1nc2n(c(=O)c1O)CCOC2(C)C to produce CCOC(=O)c1nc2n(c(=O)c1OCc1ccccc1)CCOC2(C)C, please predict the agent for this reaction in SMILES notation in \boxed{$SMILES1, SMILES2, ...} format.