Using COC(=O)c1sc(C(C)(C)C)nc1CNc1cccc(B2OC(C)(C)C(C)(C)O2)c1C to produce Cc1c(NCc2nc(C(C)(C)C)sc2C(=O)O)cccc1B1OC(C)(C)C(C)(C)O1, please predict the agent for this reaction in SMILES notation in \boxed{$SMILES1, SMILES2, ...} format.