Using CCOC(=O)CC(=O)C(F)(F)F, CC(=O)OCC[C@H](N)C(=O)O to produce CC(=O)OCC[C@H](NC(=O)C(F)(F)F)C(=O)O, please predict the solvent for this reaction in SMILES notation in \boxed{$SMILES1, SMILES2, ...} format.