Using CSc1nn2c(I)cccc2c1NC(=O)OC(C)(C)C, CCOB(OCC)OCC to produce CSc1nn2c(OB(O)O)cccc2c1NC(=O)OC(C)(C)C, please predict the agent for this reaction in SMILES notation in \boxed{$SMILES1, SMILES2, ...} format.