Using CCCBr, CCOC(=O)c1cnc2cc(-n3cccc3)c(F)cc2c1O to produce CCCn1cc(C(=O)OCC)c(=O)c2cc(F)c(-n3cccc3)cc21, please predict the agent for this reaction in SMILES notation in \boxed{$SMILES1, SMILES2, ...} format.