Using CC(C)(C)OC(=O)N1CCn2c(C(F)(F)F)nc(C(=O)O)c2C1, C1COCCN1 to produce CC(C)(C)OC(=O)N1CCn2c(C(F)(F)F)nc(C(=O)N3CCOCC3)c2C1, please predict the agent for this reaction in SMILES notation in \boxed{$SMILES1, SMILES2, ...} format.