Using CC(C)(C)OC(=O)c1cc2[nH]cc(C3CCCCC3)c2s1, COC(=O)CBr to produce COC(=O)Cn1cc(C2CCCCC2)c2sc(C(=O)OC(C)(C)C)cc21, please predict the agent for this reaction in SMILES notation in \boxed{$SMILES1, SMILES2, ...} format.