Classifications

• • C—CHEMISTRY; METALLURGY
  • C07—ORGANIC CHEMISTRY
  • C07D—HETEROCYCLIC COMPOUNDS
  • C07D403/00—Heterocyclic compounds containing two or more hetero rings, having nitrogen atoms as the only ring hetero atoms, not provided for by group C07D401/00
  • C07D403/02—Heterocyclic compounds containing two or more hetero rings, having nitrogen atoms as the only ring hetero atoms, not provided for by group C07D401/00 containing two hetero rings
  • C07D403/12—Heterocyclic compounds containing two or more hetero rings, having nitrogen atoms as the only ring hetero atoms, not provided for by group C07D401/00 containing two hetero rings linked by a chain containing hetero atoms as chain links
• • C—CHEMISTRY; METALLURGY
  • C07—ORGANIC CHEMISTRY
  • C07D—HETEROCYCLIC COMPOUNDS
  • C07D207/00—Heterocyclic compounds containing five-membered rings not condensed with other rings, with one nitrogen atom as the only ring hetero atom
  • C07D207/02—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
  • C07D207/18—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 one double bond between ring members or between a ring member and a non-ring member
  • C07D207/22—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 one double bond between ring members or between a ring member and a non-ring member with hetero atoms or with carbon atoms having three bonds to hetero atoms with at the most one bond to halogen, e.g. ester or nitrile radicals, directly attached to ring carbon atoms
  • C07D207/24—Oxygen or sulfur atoms
  • C07D207/26—2-Pyrrolidones
• • A—HUMAN NECESSITIES
  • A61—MEDICAL OR VETERINARY SCIENCE; HYGIENE
  • A61P—SPECIFIC THERAPEUTIC ACTIVITY OF CHEMICAL COMPOUNDS OR MEDICINAL PREPARATIONS
  • A61P25/00—Drugs for disorders of the nervous system
  • A61P25/28—Drugs for disorders of the nervous system for treating neurodegenerative disorders of the central nervous system, e.g. nootropic agents, cognition enhancers, drugs for treating Alzheimer's disease or other forms of dementia
• • C—CHEMISTRY; METALLURGY
  • C07—ORGANIC CHEMISTRY
  • C07D—HETEROCYCLIC COMPOUNDS
  • C07D403/00—Heterocyclic compounds containing two or more hetero rings, having nitrogen atoms as the only ring hetero atoms, not provided for by group C07D401/00
  • C07D403/02—Heterocyclic compounds containing two or more hetero rings, having nitrogen atoms as the only ring hetero atoms, not provided for by group C07D401/00 containing two hetero rings
  • C07D403/06—Heterocyclic compounds containing two or more hetero rings, having nitrogen atoms as the only ring hetero atoms, not provided for by group C07D401/00 containing two hetero rings linked by a carbon chain containing only aliphatic carbon atoms
• • Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
  • Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
  • Y02P—CLIMATE CHANGE MITIGATION TECHNOLOGIES IN THE PRODUCTION OR PROCESSING OF GOODS
  • Y02P20/00—Technologies relating to chemical industry
  • Y02P20/50—Improvements relating to the production of bulk chemicals
  • Y02P20/55—Design of synthesis routes, e.g. reducing the use of auxiliary or protecting groups

Landscapes

• Chemical & Material Sciences (AREA)
• Organic Chemistry (AREA)
• Health & Medical Sciences (AREA)
• Engineering & Computer Science (AREA)
• Bioinformatics & Cheminformatics (AREA)
• Biomedical Technology (AREA)
• Neurology (AREA)
• Neurosurgery (AREA)
• Nuclear Medicine, Radiotherapy & Molecular Imaging (AREA)
• General Health & Medical Sciences (AREA)
• General Chemical & Material Sciences (AREA)
• Medicinal Chemistry (AREA)
• Psychiatry (AREA)
• Hospice & Palliative Care (AREA)
• Pharmacology & Pharmacy (AREA)
• Life Sciences & Earth Sciences (AREA)
• Animal Behavior & Ethology (AREA)
• Chemical Kinetics & Catalysis (AREA)
• Public Health (AREA)
• Veterinary Medicine (AREA)
• Pharmaceuticals Containing Other Organic And Inorganic Compounds (AREA)
• Pyrrole Compounds (AREA)
• Plural Heterocyclic Compounds (AREA)
• Nitrogen Condensed Heterocyclic Rings (AREA)
• Steroid Compounds (AREA)
• Solid-Sorbent Or Filter-Aiding Compositions (AREA)

Applications Claiming Priority (1)

Publications (2)

Family

ID=4184917

Family Applications (1)

Country Status (21)

Families Citing this family (3)

Family Cites Families (5)

• 1987
  • 1987-01-21 PH PH34749A patent/PH23078A/en unknown
  • 1987-01-26 DE DE8787810045T patent/DE3783247D1/de not_active Expired - Fee Related
  • 1987-01-26 EP EP87810045A patent/EP0236263B1/de not_active Expired - Lifetime
  • 1987-01-26 AT AT87810045T patent/ATE84033T1/de not_active IP Right Cessation
  • 1987-01-26 FI FI870329A patent/FI870329A7/fi not_active IP Right Cessation
  • 1987-01-26 ES ES87810045T patent/ES2053578T3/es not_active Expired - Lifetime
  • 1987-01-27 IL IL81394A patent/IL81394A/xx not_active IP Right Cessation
  • 1987-01-28 DD DD87299511A patent/DD260066A5/de unknown
  • 1987-01-28 PT PT84204A patent/PT84204B/pt not_active IP Right Cessation
  • 1987-01-28 CA CA000528330A patent/CA1312081C/en not_active Expired - Lifetime
  • 1987-01-29 IE IE23087A patent/IE61100B1/en not_active IP Right Cessation
  • 1987-01-29 AU AU68097/87A patent/AU599951B2/en not_active Ceased
  • 1987-01-29 NO NO870374A patent/NO870374L/no unknown
  • 1987-01-29 ZA ZA87650A patent/ZA87650B/xx unknown
  • 1987-01-29 DK DK047187A patent/DK47187A/da not_active Application Discontinuation
  • 1987-01-29 HU HU87277A patent/HU202862B/hu not_active IP Right Cessation
  • 1987-01-29 NZ NZ219101A patent/NZ219101A/xx unknown
  • 1987-01-30 KR KR870000728A patent/KR870007159A/ko not_active Ceased
  • 1987-01-30 JP JP62018790A patent/JPS62185068A/ja active Granted
• 1989
  • 1989-06-19 US US07/370,093 patent/US4945092A/en not_active Expired - Fee Related
• 1993
  • 1993-03-19 GR GR920402948T patent/GR3007411T3/el unknown

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