Using [N-]=[N+]=[N-], CS(=O)(=O)OC[C@H]1CN(c2ccc(N3Cc4ccccc4C3=O)c(F)c2)C(=O)O1 to produce [N-]=[N+]=NC[C@H]1CN(c2ccc(N3Cc4ccccc4C3=O)c(F)c2)C(=O)O1, please predict the solvent for this reaction in SMILES notation in \boxed{$SMILES1, SMILES2, ...} format.