Using Fc1cc(CC(CBr)CBr)ccc1-c1nc2ccc(C3(c4ccccc4)CC3)nc2s1, CCOC(=O)CC(=O)OCC to produce CCOC(=O)C1(C(=O)OCC)CC(Cc2ccc(-c3nc4ccc(C5(c6ccccc6)CC5)nc4s3)c(F)c2)C1, please predict the agent for this reaction in SMILES notation in \boxed{$SMILES1, SMILES2, ...} format.