Using COCc1cc(OC2CCN(C(=O)OC(C)(C)C)CC2)nc(C(F)(F)F)c1 to produce COCc1cc(OC2CCNCC2)nc(C(F)(F)F)c1, please predict the agent for this reaction in SMILES notation in \boxed{$SMILES1, SMILES2, ...} format.