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IPC Subgroup
A61K 31/44

Non-condensed pyridines; Hydrogenated derivatives thereof

Introduced: July 1974

Last revised: January 2006

Full Title

Medicinal preparations containing organic active ingredients > Heterocyclic compounds > having nitrogen as a ring hetero atom, e.g. guanethidine or rifamycins > having six-membered rings with one nitrogen as the only ring hetero atom > Non-condensed pyridines; Hydrogenated derivatives thereof

Classification Context

Section:
HUMAN NECESSITIES
Class:
MEDICAL OR VETERINARY SCIENCE; HYGIENE
Subclass:
PREPARATIONS FOR MEDICAL, DENTAL OR TOILETRY PURPOSES

11 direct subcodes

Child Classifications

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  • A61K 31/4402 only substituted in position 2, e.g. pheniramine, bisacodyl
  • A61K 31/4406 only substituted in position 3, e.g. zimeldine
  • A61K 31/4409 only substituted in position 4, e.g. isoniazid, iproniazid
  • A61K 31/4412 having oxo groups directly attached to the heterocyclic ring
  • A61K 31/4415 Pyridoxine, i.e.vitamin B
  • A61K 31/4418 having a carbocyclic ring directly attached to the heterocyclic ring, e.g. cyproheptadine
  • A61K 31/4422 1,4-Dihydropyridines, e.g. nifedipine, nicardipine
  • A61K 31/4425 Pyridinium derivatives, e.g. pralidoxime, pyridostigmine
  • A61K 31/455 Nicotinic acid, i.e. niacin; Derivatives thereof, e.g. esters, amides