Using CC(C)(C)OC(=O)NCCO, CCOC(=O)c1ccc(F)cc1F to produce CCOC(=O)c1ccc(F)cc1OCCNC(=O)OC(C)(C)C, please predict the agent for this reaction in SMILES notation in \boxed{$SMILES1, SMILES2, ...} format.