Using CCOC(=O)c1csc(COc2ccc(I)cc2)n1, OB(O)c1cccc(-c2ccccc2)c1 to produce O=C(O)c1csc(COc2ccc(-c3cccc(-c4ccccc4)c3)cc2)n1, please predict the agent for this reaction in SMILES notation in \boxed{$SMILES1, SMILES2, ...} format.