Using O=S1(=O)CCC(n2cc(I)cn2)CC1, COB1OC(C)(C)C(C)(C)O1 to produce CC1(C)OB(c2cnn(C3CCS(=O)(=O)CC3)c2)OC1(C)C, please predict the agent for this reaction in SMILES notation in \boxed{$SMILES1, SMILES2, ...} format.