Using CC(C)(C)OC(=O)n1ncc(I)cc1=O, CCCC[Sn](CCCC)(CCCC)COc1ccc(Cl)cc1 to produce O=c1cc(COc2ccc(Cl)cc2)cn[nH]1, please predict the agent for this reaction in SMILES notation in \boxed{$SMILES1, SMILES2, ...} format.