Using CCOC=C(C(=O)OCC)C(=O)OCC, C[C@@H](CO)Nc1ccc(F)c(F)c1F to produce CCOC(=O)C(=CN1c2ccc(F)c(F)c2OC[C@@H]1C)C(=O)OCC, please predict the agent for this reaction in SMILES notation in \boxed{$SMILES1, SMILES2, ...} format.