Using C#Cc1ccccc1, Nc1ccc(Cl)cc1C(=O)C(F)(F)Cl to produce Nc1ccc(Cl)cc1C(O)(C#Cc1ccccc1)C(F)(F)Cl, please predict the solvent for this reaction in SMILES notation in \boxed{$SMILES1, SMILES2, ...} format.