Using CCOC(=O)CBr, COc1cc2c(Oc3cc4ccccc4nc3C)ccnc2cc1O to produce CCOC(=O)COc1cc2nccc(Oc3cc4ccccc4nc3C)c2cc1OC, please predict the agent for this reaction in SMILES notation in \boxed{$SMILES1, SMILES2, ...} format.