Using CC(C)(C)OC(=O)N1CCC(c2noc3cc(F)ccc23)CC1, COB(OC)OC to produce CC(C)(C)OC(=O)N1CCC(c2noc3c(O)c(F)ccc23)CC1, please predict the agent for this reaction in SMILES notation in \boxed{$SMILES1, SMILES2, ...} format.