Radicals substituted by nitrogen atoms, not forming part of a nitro radical

Full Title

Heterocyclic compounds containing five-membered rings not condensed with other rings, with one nitrogen atom as the only ring hetero atom > with only hydrogen or carbon atoms directly attached to the ring nitrogen atom > having no double bonds between ring members or between ring members and non-ring members > with hydrocarbon radicals, substituted by hetero atoms, attached to ring carbon atoms > Radicals substituted by nitrogen atoms, not forming part of a nitro radical