Using COC(=O)C1Sc2c(C(F)(F)F)cccc2C1(O)C1CCN(C(=O)OC(C)(C)C)CC1 to produce COC(=O)c1sc2c(C(F)(F)F)cccc2c1C1CCNCC1, please predict the agent for this reaction in SMILES notation in \boxed{$SMILES1, SMILES2, ...} format.