ES409089A1 - Procedimiento para la preparacion de nuevas 6-aza-3h-1,4- benzodiazepinas. - Google Patents
Procedimiento para la preparacion de nuevas 6-aza-3h-1,4- benzodiazepinas.Info
- Publication number
- ES409089A1 ES409089A1 ES409089A ES409089A ES409089A1 ES 409089 A1 ES409089 A1 ES 409089A1 ES 409089 A ES409089 A ES 409089A ES 409089 A ES409089 A ES 409089A ES 409089 A1 ES409089 A1 ES 409089A1
- Authority
- ES
- Spain
- Prior art keywords
- group
- molecular weight
- low molecular
- atom
- carbon atoms
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Expired
Links
- 125000004432 carbon atom Chemical group C* 0.000 abstract 6
- 125000004435 hydrogen atom Chemical class [H]* 0.000 abstract 5
- IJGRMHOSHXDMSA-UHFFFAOYSA-N Atomic nitrogen Chemical compound N#N IJGRMHOSHXDMSA-UHFFFAOYSA-N 0.000 abstract 4
- 125000005843 halogen group Chemical group 0.000 abstract 4
- 125000002887 hydroxy group Chemical group [H]O* 0.000 abstract 4
- 229910052757 nitrogen Inorganic materials 0.000 abstract 4
- QGZKDVFQNNGYKY-UHFFFAOYSA-N Ammonia Chemical compound N QGZKDVFQNNGYKY-UHFFFAOYSA-N 0.000 abstract 3
- 125000003158 alcohol group Chemical group 0.000 abstract 3
- 125000001931 aliphatic group Chemical group 0.000 abstract 3
- 125000003545 alkoxy group Chemical group 0.000 abstract 3
- 150000001875 compounds Chemical class 0.000 abstract 3
- 238000000034 method Methods 0.000 abstract 3
- MYMOFIZGZYHOMD-UHFFFAOYSA-N Dioxygen Chemical compound O=O MYMOFIZGZYHOMD-UHFFFAOYSA-N 0.000 abstract 2
- 239000002253 acid Substances 0.000 abstract 2
- 125000002252 acyl group Chemical group 0.000 abstract 2
- 125000003277 amino group Chemical group 0.000 abstract 2
- 125000001797 benzyl group Chemical group [H]C1=C([H])C([H])=C(C([H])=C1[H])C([H])([H])* 0.000 abstract 2
- 125000002560 nitrile group Chemical group 0.000 abstract 2
- 125000004433 nitrogen atom Chemical group N* 0.000 abstract 2
- 229910052760 oxygen Inorganic materials 0.000 abstract 2
- 239000001301 oxygen Substances 0.000 abstract 2
- 125000004430 oxygen atom Chemical group O* 0.000 abstract 2
- 229910052717 sulfur Inorganic materials 0.000 abstract 2
- 125000004434 sulfur atom Chemical group 0.000 abstract 2
- 125000003341 7 membered heterocyclic group Chemical group 0.000 abstract 1
- 150000007513 acids Chemical class 0.000 abstract 1
- -1 aliphatic monocarboxylic Chemical class 0.000 abstract 1
- 125000003342 alkenyl group Chemical group 0.000 abstract 1
- 229910021529 ammonia Inorganic materials 0.000 abstract 1
- 125000003178 carboxy group Chemical group [H]OC(*)=O 0.000 abstract 1
- 239000003795 chemical substances by application Substances 0.000 abstract 1
- 150000001991 dicarboxylic acids Chemical class 0.000 abstract 1
- 229910052739 hydrogen Inorganic materials 0.000 abstract 1
- 239000001257 hydrogen Substances 0.000 abstract 1
- 125000002768 hydroxyalkyl group Chemical group 0.000 abstract 1
- 125000000449 nitro group Chemical group [O-][N+](*)=O 0.000 abstract 1
- 150000003839 salts Chemical class 0.000 abstract 1
- 125000003396 thiol group Chemical group [H]S* 0.000 abstract 1
- 125000002023 trifluoromethyl group Chemical group FC(F)(F)* 0.000 abstract 1
Classifications
-
- C—CHEMISTRY; METALLURGY
- C07—ORGANIC CHEMISTRY
- C07D—HETEROCYCLIC COMPOUNDS
- C07D213/00—Heterocyclic compounds containing six-membered rings, not condensed with other rings, with one nitrogen atom as the only ring hetero atom and three or more double bonds between ring members or between ring members and non-ring members
- C07D213/02—Heterocyclic compounds containing six-membered rings, not condensed with other rings, with one nitrogen atom as the only ring hetero atom and three or more double bonds between ring members or between ring members and non-ring members having three double bonds between ring members or between ring members and non-ring members
- C07D213/04—Heterocyclic compounds containing six-membered rings, not condensed with other rings, with one nitrogen atom as the only ring hetero atom and three or more double bonds between ring members or between ring members and non-ring members having three double bonds between ring members or between ring members and non-ring members having no bond between the ring nitrogen atom and a non-ring member or having only hydrogen or carbon atoms directly attached to the ring nitrogen atom
- C07D213/60—Heterocyclic compounds containing six-membered rings, not condensed with other rings, with one nitrogen atom as the only ring hetero atom and three or more double bonds between ring members or between ring members and non-ring members having three double bonds between ring members or between ring members and non-ring members having no bond between the ring nitrogen atom and a non-ring member or having only hydrogen or carbon atoms directly attached to the ring nitrogen atom 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
- C07D213/62—Oxygen or sulfur atoms
- C07D213/63—One oxygen atom
- C07D213/64—One oxygen atom attached in position 2 or 6
-
- 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
- A61P25/08—Antiepileptics; Anticonvulsants
-
- 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
- A61P25/20—Hypnotics; Sedatives
-
- A—HUMAN NECESSITIES
- A61—MEDICAL OR VETERINARY SCIENCE; HYGIENE
- A61P—SPECIFIC THERAPEUTIC ACTIVITY OF CHEMICAL COMPOUNDS OR MEDICINAL PREPARATIONS
- A61P29/00—Non-central analgesic, antipyretic or antiinflammatory agents, e.g. antirheumatic agents; Non-steroidal antiinflammatory drugs [NSAID]
-
- C—CHEMISTRY; METALLURGY
- C07—ORGANIC CHEMISTRY
- C07D—HETEROCYCLIC COMPOUNDS
- C07D213/00—Heterocyclic compounds containing six-membered rings, not condensed with other rings, with one nitrogen atom as the only ring hetero atom and three or more double bonds between ring members or between ring members and non-ring members
- C07D213/02—Heterocyclic compounds containing six-membered rings, not condensed with other rings, with one nitrogen atom as the only ring hetero atom and three or more double bonds between ring members or between ring members and non-ring members having three double bonds between ring members or between ring members and non-ring members
- C07D213/04—Heterocyclic compounds containing six-membered rings, not condensed with other rings, with one nitrogen atom as the only ring hetero atom and three or more double bonds between ring members or between ring members and non-ring members having three double bonds between ring members or between ring members and non-ring members having no bond between the ring nitrogen atom and a non-ring member or having only hydrogen or carbon atoms directly attached to the ring nitrogen atom
- C07D213/24—Heterocyclic compounds containing six-membered rings, not condensed with other rings, with one nitrogen atom as the only ring hetero atom and three or more double bonds between ring members or between ring members and non-ring members having three double bonds between ring members or between ring members and non-ring members having no bond between the ring nitrogen atom and a non-ring member or having only hydrogen or carbon atoms directly attached to the ring nitrogen atom with substituted hydrocarbon radicals attached to ring carbon atoms
- C07D213/54—Radicals substituted by carbon atoms having three bonds to hetero atoms with at the most one bond to halogen, e.g. ester or nitrile radicals
- C07D213/57—Nitriles
-
- C—CHEMISTRY; METALLURGY
- C07—ORGANIC CHEMISTRY
- C07D—HETEROCYCLIC COMPOUNDS
- C07D213/00—Heterocyclic compounds containing six-membered rings, not condensed with other rings, with one nitrogen atom as the only ring hetero atom and three or more double bonds between ring members or between ring members and non-ring members
- C07D213/02—Heterocyclic compounds containing six-membered rings, not condensed with other rings, with one nitrogen atom as the only ring hetero atom and three or more double bonds between ring members or between ring members and non-ring members having three double bonds between ring members or between ring members and non-ring members
- C07D213/04—Heterocyclic compounds containing six-membered rings, not condensed with other rings, with one nitrogen atom as the only ring hetero atom and three or more double bonds between ring members or between ring members and non-ring members having three double bonds between ring members or between ring members and non-ring members having no bond between the ring nitrogen atom and a non-ring member or having only hydrogen or carbon atoms directly attached to the ring nitrogen atom
- C07D213/60—Heterocyclic compounds containing six-membered rings, not condensed with other rings, with one nitrogen atom as the only ring hetero atom and three or more double bonds between ring members or between ring members and non-ring members having three double bonds between ring members or between ring members and non-ring members having no bond between the ring nitrogen atom and a non-ring member or having only hydrogen or carbon atoms directly attached to the ring nitrogen atom 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
- C07D213/61—Halogen atoms or nitro radicals
-
- C—CHEMISTRY; METALLURGY
- C07—ORGANIC CHEMISTRY
- C07D—HETEROCYCLIC COMPOUNDS
- C07D213/00—Heterocyclic compounds containing six-membered rings, not condensed with other rings, with one nitrogen atom as the only ring hetero atom and three or more double bonds between ring members or between ring members and non-ring members
- C07D213/02—Heterocyclic compounds containing six-membered rings, not condensed with other rings, with one nitrogen atom as the only ring hetero atom and three or more double bonds between ring members or between ring members and non-ring members having three double bonds between ring members or between ring members and non-ring members
- C07D213/04—Heterocyclic compounds containing six-membered rings, not condensed with other rings, with one nitrogen atom as the only ring hetero atom and three or more double bonds between ring members or between ring members and non-ring members having three double bonds between ring members or between ring members and non-ring members having no bond between the ring nitrogen atom and a non-ring member or having only hydrogen or carbon atoms directly attached to the ring nitrogen atom
- C07D213/60—Heterocyclic compounds containing six-membered rings, not condensed with other rings, with one nitrogen atom as the only ring hetero atom and three or more double bonds between ring members or between ring members and non-ring members having three double bonds between ring members or between ring members and non-ring members having no bond between the ring nitrogen atom and a non-ring member or having only hydrogen or carbon atoms directly attached to the ring nitrogen atom 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
- C07D213/72—Nitrogen atoms
- C07D213/73—Unsubstituted amino or imino radicals
-
- C—CHEMISTRY; METALLURGY
- C07—ORGANIC CHEMISTRY
- C07D—HETEROCYCLIC COMPOUNDS
- C07D213/00—Heterocyclic compounds containing six-membered rings, not condensed with other rings, with one nitrogen atom as the only ring hetero atom and three or more double bonds between ring members or between ring members and non-ring members
- C07D213/02—Heterocyclic compounds containing six-membered rings, not condensed with other rings, with one nitrogen atom as the only ring hetero atom and three or more double bonds between ring members or between ring members and non-ring members having three double bonds between ring members or between ring members and non-ring members
- C07D213/04—Heterocyclic compounds containing six-membered rings, not condensed with other rings, with one nitrogen atom as the only ring hetero atom and three or more double bonds between ring members or between ring members and non-ring members having three double bonds between ring members or between ring members and non-ring members having no bond between the ring nitrogen atom and a non-ring member or having only hydrogen or carbon atoms directly attached to the ring nitrogen atom
- C07D213/60—Heterocyclic compounds containing six-membered rings, not condensed with other rings, with one nitrogen atom as the only ring hetero atom and three or more double bonds between ring members or between ring members and non-ring members having three double bonds between ring members or between ring members and non-ring members having no bond between the ring nitrogen atom and a non-ring member or having only hydrogen or carbon atoms directly attached to the ring nitrogen atom 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
- C07D213/72—Nitrogen atoms
- C07D213/75—Amino or imino radicals, acylated by carboxylic or carbonic acids, or by sulfur or nitrogen analogues thereof, e.g. carbamates
-
- C—CHEMISTRY; METALLURGY
- C07—ORGANIC CHEMISTRY
- C07D—HETEROCYCLIC COMPOUNDS
- C07D471/00—Heterocyclic compounds containing nitrogen atoms as the only ring hetero atoms in the condensed system, at least one ring being a six-membered ring with one nitrogen atom, not provided for by groups C07D451/00 - C07D463/00
- C07D471/02—Heterocyclic compounds containing nitrogen atoms as the only ring hetero atoms in the condensed system, at least one ring being a six-membered ring with one nitrogen atom, not provided for by groups C07D451/00 - C07D463/00 in which the condensed system contains two hetero rings
- C07D471/04—Ortho-condensed systems
Landscapes
- Chemical & Material Sciences (AREA)
- Organic Chemistry (AREA)
- Health & Medical Sciences (AREA)
- Veterinary Medicine (AREA)
- Life Sciences & Earth Sciences (AREA)
- Public Health (AREA)
- General Health & Medical Sciences (AREA)
- Animal Behavior & Ethology (AREA)
- Pharmacology & Pharmacy (AREA)
- Chemical Kinetics & Catalysis (AREA)
- General Chemical & Material Sciences (AREA)
- Medicinal Chemistry (AREA)
- Nuclear Medicine, Radiotherapy & Molecular Imaging (AREA)
- Neurosurgery (AREA)
- Engineering & Computer Science (AREA)
- Neurology (AREA)
- Biomedical Technology (AREA)
- Bioinformatics & Cheminformatics (AREA)
- Pain & Pain Management (AREA)
- Anesthesiology (AREA)
- Rheumatology (AREA)
- Pharmaceuticals Containing Other Organic And Inorganic Compounds (AREA)
- Nitrogen Condensed Heterocyclic Rings (AREA)
- Plural Heterocyclic Compounds (AREA)
- Heterocyclic Compounds That Contain Two Or More Ring Oxygen Atoms (AREA)
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| AT1060471A AT333284B (de) | 1971-12-09 | 1971-12-09 | Verfahren zur herstellung von neuen 6-aza-3h-1,4-benzodiazepinen, deren optischen isomeren und deren salzen |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| ES409089A1 true ES409089A1 (es) | 1975-10-16 |
Family
ID=3623479
Family Applications (2)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| ES409089A Expired ES409089A1 (es) | 1971-12-09 | 1972-11-29 | Procedimiento para la preparacion de nuevas 6-aza-3h-1,4- benzodiazepinas. |
| ES409090A Expired ES409090A1 (es) | 1971-12-09 | 1972-11-29 | Procedimiento para la preparacion de nuevas 6-aza-3h-1,4- benzodiazepinas. |
Family Applications After (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| ES409090A Expired ES409090A1 (es) | 1971-12-09 | 1972-11-29 | Procedimiento para la preparacion de nuevas 6-aza-3h-1,4- benzodiazepinas. |
Country Status (26)
Families Citing this family (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| DE2364636C2 (de) * | 1973-12-24 | 1982-11-04 | Degussa Ag, 6000 Frankfurt | Verfahren zur Herstellung von 2-Benzoyl-6-chlor-3-nitro-pyridinen |
| EP0032516B1 (en) * | 1980-01-16 | 1984-05-02 | Lacer, S.A. | New 2-halo-pyridines, their production and pharmaceutical compositions |
| JPS60132610A (ja) * | 1983-12-20 | 1985-07-15 | Japan Organo Co Ltd | 汚泥脱水装置 |
| JPS6219221A (ja) * | 1985-07-16 | 1987-01-28 | Chiyoda Chem Eng & Constr Co Ltd | 原液中の微細粒子を除去する濾過方法と濾過装置 |
Family Cites Families (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US3314941A (en) * | 1964-06-23 | 1967-04-18 | American Cyanamid Co | Novel substituted pyridodiazepins |
| US3523939A (en) * | 1967-07-03 | 1970-08-11 | Hoffmann La Roche | 5-(2,6-disubstituted phenyl)-1,4-benzodiazepines and methods for their preparation |
-
1971
- 1971-12-09 AT AT1060471A patent/AT333284B/de not_active IP Right Cessation
- 1971-12-09 AT AT902174A patent/AT332877B/de active
- 1971-12-09 AT AT902274A patent/AT332878B/de active
-
1972
- 1972-11-29 ES ES409089A patent/ES409089A1/es not_active Expired
- 1972-11-29 ES ES409090A patent/ES409090A1/es not_active Expired
- 1972-11-30 FI FI3390/72A patent/FI54710C/fi active
- 1972-11-30 ZA ZA728497A patent/ZA728497B/xx unknown
- 1972-12-05 DE DE2259471A patent/DE2259471C2/de not_active Expired
- 1972-12-05 SE SE7215858A patent/SE404803B/xx unknown
- 1972-12-06 FR FR7243359A patent/FR2162482B1/fr not_active Expired
- 1972-12-06 HU HUDE799A patent/HU169468B/hu unknown
- 1972-12-06 EG EG502/72A patent/EG10918A/xx active
- 1972-12-07 IT IT7254583Q patent/IT1035053B/it active
- 1972-12-07 RO RO7281196A patent/RO65263A/ro unknown
- 1972-12-07 RO RO7281197A patent/RO67345A/ro unknown
- 1972-12-07 RO RO7200073075A patent/RO62312A/ro unknown
- 1972-12-07 PL PL1972175581A patent/PL91876B1/pl unknown
- 1972-12-07 PL PL1972175582A patent/PL91828B1/pl unknown
- 1972-12-07 PL PL1972159365A patent/PL89682B1/pl unknown
- 1972-12-07 RO RO7281195A patent/RO65264A/ro unknown
- 1972-12-07 NL NLAANVRAGE7216621,A patent/NL171986C/xx not_active IP Right Cessation
- 1972-12-08 GB GB5688372A patent/GB1400755A/en not_active Expired
- 1972-12-08 CS CS728424A patent/CS212736B2/cs unknown
- 1972-12-08 IL IL41034A patent/IL41034A/en unknown
- 1972-12-08 DK DK615172AA patent/DK138425B/da not_active IP Right Cessation
- 1972-12-08 YU YU03059/72A patent/YU305972A/xx unknown
- 1972-12-08 SU SU1855103A patent/SU468423A3/ru active
- 1972-12-08 NO NO4536/72A patent/NO137094C/no unknown
- 1972-12-08 BE BE792541A patent/BE792541A/xx not_active IP Right Cessation
- 1972-12-09 JP JP12387872A patent/JPS569509B2/ja not_active Expired
- 1972-12-11 CH CH1794972A patent/CH594665A5/xx not_active IP Right Cessation
- 1972-12-11 DD DD167428A patent/DD105448A5/xx unknown
- 1972-12-11 CH CH1526076A patent/CH603645A5/xx not_active IP Right Cessation
- 1972-12-11 CH CH1506576A patent/CH605946A5/xx not_active IP Right Cessation
- 1972-12-11 AU AU49931/72A patent/AU473253B2/en not_active Expired
- 1972-12-11 CH CH1506676A patent/CH603644A5/xx not_active IP Right Cessation
-
1973
- 1973-09-10 AR AR250008A patent/AR201201A1/es active
-
1974
- 1974-03-20 AR AR252867A patent/AR200309A1/es active
- 1974-07-08 SU SU742041603A patent/SU674675A3/ru active
- 1974-07-08 SU SU7402042686A patent/SU564809A3/ru active
- 1974-10-15 SU SU7402067128A patent/SU574156A3/ru active
- 1974-10-31 AR AR256352A patent/AR203311A1/es active
- 1974-11-11 AT AT902074A patent/AT338798B/de not_active IP Right Cessation
-
1980
- 1980-04-15 JP JP5022280A patent/JPS55147282A/ja active Granted
- 1980-04-15 JP JP5022180A patent/JPS5625180A/ja active Granted
- 1980-04-15 JP JP5022380A patent/JPS5625181A/ja active Granted
-
1981
- 1981-05-07 YU YU01168/81A patent/YU116881A/xx unknown
Also Published As
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| ES387562A1 (es) | Procedimiento de 1,4-dihidropiridinas con efecto dilatador de los vasos coronarios. | |
| SE7607201L (sv) | Forfarande for framstellning av nya tienopyridinderivat | |
| ES394370A1 (es) | Procedimiento para la preparacion de derivados de la inso-indolina. | |
| GB1023220A (en) | Production of carboxylic acid amides | |
| ES409089A1 (es) | Procedimiento para la preparacion de nuevas 6-aza-3h-1,4- benzodiazepinas. | |
| ES426303A1 (es) | Procedimiento para la obtencion de derivados de oxazolidi- na. | |
| GB1111507A (en) | Substituted amino pyridines | |
| GB1538921A (en) | Amide derivatives of dimeric alkaloids | |
| ES438138A1 (es) | Un procedimiento para preparar acidos tioxantion-2-carboxi- licos. | |
| ES400820A1 (es) | Procedimiento para preparar 3-amino-imidazo (1,5-a) piridi-nas. | |
| ES414953A1 (es) | Procedimiento para la preparacion de 4-(4-bifenilil)-buta- noles. | |
| ES394972A1 (es) | Procedimiento para la preparacion de nuevos 3 - alcohil - ariloximetilisoxazoles. | |
| ES419019A1 (es) | Procedimiento para la preparacion de compuestos polici- clicos. | |
| ES431552A1 (es) | Procedimiento para preparar triazinadionas herbicidas. | |
| ES378202A1 (es) | Procedimiento para la preparacion de nuevos 2-amino-5-ni- trotiazoles sustituidos en el grupo amino. | |
| ES430457A1 (es) | Procedimiento para la preparacion de acidos 2-alcoxi-ben- zoicos sustituidos con sulfamoilo en la posicion 5. | |
| ES395958A1 (es) | Un procedimiento para la produccion de un parahidroxifenil -alfa- aminoacido. | |
| ES416973A1 (es) | Procedimiento para la preparacion de derivados de 1,8 naf- tiridina. | |
| ES274909A1 (es) | Procedimiento para la preparaciën de nuevos derivados de iminodibencilo | |
| ES412248A1 (es) | Un procedimiento para la preparacion de sales farmaceuti- camente aceptables de derivados de o2,2'-anhidro-1-(3'0-a- cil-beta-d-arabinofuranosil) citosina. | |
| ES417337A2 (es) | Un procedimiento para la preparacion de nuevos derivados depiridina. | |
| ES277369A1 (es) | Un procedimiento para preparar 2-aril-4,7-diamino-n-disubstituído-aminoalcohil-6-pteridincarboxamidas | |
| ES445255A1 (es) | Un procedimiento para la preparacion de acidos metil-2 o 3- cefem-4-carboxilicos 3-sustituidos. | |
| ES432535A1 (es) | Un procedimiento para la preparacion de benzodiazepinas-1,4. | |
| ES421262A1 (es) | Un procedimiento para la preparacion de un 2-aminoalcohil-3-fenil-indol. |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| FD1A | Patent lapsed |
Effective date: 19880204 |