Using O=CCc1ccc2c(c1)COC2=O, CC(C)(C)OC(=O)N1CCNC(C(F)(F)F)C1 to produce CC(C)(C)OC(=O)N1CCN(CCc2ccc3c(c2)COC3=O)C(C(F)(F)F)C1, please predict the agent for this reaction in SMILES notation in \boxed{$SMILES1, SMILES2, ...} format.