Using [N-]=[N+]=[N-], O=C1O[C@H](CCl)CN1c1ccc(Cl)cn1 to produce [N-]=[N+]=NC[C@@H]1CN(c2ccc(Cl)cn2)C(=O)O1, please predict the solvent for this reaction in SMILES notation in \boxed{$SMILES1, SMILES2, ...} format.