| prov:value
| - still preferably 1 to 16 carbon atoms, and particularly preferably 1 to 12 carbon atoms, such as mesyl or tosyl), and a heterocyclic group (including an aliphatic one and an aromatic one, preferably having 1 to 50 carbon atoms, still preferably 1 to 30 carbon atoms, and particularly preferably 2 to 12 carbon atoms, and containing at least one of oxygen, sulfur, and nitrogen, such as imidazolyl, p
|