Using CCCC[Sn](Cl)(CCCC)CCCC, CC(C)(C)OC(=O)N1CCC(CCCCOc2ccc(Br)cc2)CC1 to produce CCCC[Sn](CCCC)(CCCC)c1ccc(OCCCCC2CCN(C(=O)OC(C)(C)C)CC2)cc1, please predict the agent for this reaction in SMILES notation in \boxed{$SMILES1, SMILES2, ...} format.