Using Ic1ccc2[nH]c3ccc(I)cc3c2c1, OCCCCCCCCCCCBr to produce OCCCCCCCCCCCn1c2ccc(I)cc2c2cc(I)ccc21, please predict the agent for this reaction in SMILES notation in \boxed{$SMILES1, SMILES2, ...} format.