DE3362952D1 - Regeneration of 6-fluoro-4-chromanone from by-products in the synthesis of sorbinil - Google Patents
Regeneration of 6-fluoro-4-chromanone from by-products in the synthesis of sorbinilInfo
- Publication number
- DE3362952D1 DE3362952D1 DE8383306689T DE3362952T DE3362952D1 DE 3362952 D1 DE3362952 D1 DE 3362952D1 DE 8383306689 T DE8383306689 T DE 8383306689T DE 3362952 T DE3362952 T DE 3362952T DE 3362952 D1 DE3362952 D1 DE 3362952D1
- Authority
- DE
- Germany
- Prior art keywords
- sorbinil
- chromanone
- fluoro
- regeneration
- synthesis
- 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
Classifications
-
- C—CHEMISTRY; METALLURGY
- C07—ORGANIC CHEMISTRY
- C07D—HETEROCYCLIC COMPOUNDS
- C07D491/00—Heterocyclic compounds containing in the condensed ring system both one or more rings having oxygen atoms as the only ring hetero atoms and one or more rings having nitrogen atoms as the only ring hetero atoms, not provided for by groups C07D451/00 - C07D459/00, C07D463/00, C07D477/00 or C07D489/00
- C07D491/02—Heterocyclic compounds containing in the condensed ring system both one or more rings having oxygen atoms as the only ring hetero atoms and one or more rings having nitrogen atoms as the only ring hetero atoms, not provided for by groups C07D451/00 - C07D459/00, C07D463/00, C07D477/00 or C07D489/00 in which the condensed system contains two hetero rings
- C07D491/10—Spiro-condensed systems
-
- C—CHEMISTRY; METALLURGY
- C07—ORGANIC CHEMISTRY
- C07D—HETEROCYCLIC COMPOUNDS
- C07D311/00—Heterocyclic compounds containing six-membered rings having one oxygen atom as the only hetero atom, condensed with other rings
- C07D311/02—Heterocyclic compounds containing six-membered rings having one oxygen atom as the only hetero atom, condensed with other rings ortho- or peri-condensed with carbocyclic rings or ring systems
- C07D311/04—Benzo[b]pyrans, not hydrogenated in the carbocyclic ring
- C07D311/22—Benzo[b]pyrans, not hydrogenated in the carbocyclic ring with oxygen or sulfur atoms directly attached in position 4
-
- C—CHEMISTRY; METALLURGY
- C07—ORGANIC CHEMISTRY
- C07D—HETEROCYCLIC COMPOUNDS
- C07D311/00—Heterocyclic compounds containing six-membered rings having one oxygen atom as the only hetero atom, condensed with other rings
- C07D311/02—Heterocyclic compounds containing six-membered rings having one oxygen atom as the only hetero atom, condensed with other rings ortho- or peri-condensed with carbocyclic rings or ring systems
- C07D311/04—Benzo[b]pyrans, not hydrogenated in the carbocyclic ring
- C07D311/58—Benzo[b]pyrans, not hydrogenated in the carbocyclic ring other than with oxygen or sulphur atoms in position 2 or 4
- C07D311/68—Benzo[b]pyrans, not hydrogenated in the carbocyclic ring other than with oxygen or sulphur atoms in position 2 or 4 with nitrogen atoms directly attached in position 4
Landscapes
- Chemical & Material Sciences (AREA)
- Organic Chemistry (AREA)
- Organic Low-Molecular-Weight Compounds And Preparation Thereof (AREA)
- Low-Molecular Organic Synthesis Reactions Using Catalysts (AREA)
- Plural Heterocyclic Compounds (AREA)
- Pharmaceuticals Containing Other Organic And Inorganic Compounds (AREA)
Applications Claiming Priority (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
US06/440,657 US4431828A (en) | 1982-11-10 | 1982-11-10 | Regeneration of 6-fluoro-4-chromanone from by-products in the synthesis of sorbinil |
Publications (1)
Publication Number | Publication Date |
---|---|
DE3362952D1 true DE3362952D1 (en) | 1986-05-15 |
Family
ID=23749651
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
DE8383306689T Expired DE3362952D1 (en) | 1982-11-10 | 1983-11-03 | Regeneration of 6-fluoro-4-chromanone from by-products in the synthesis of sorbinil |
Country Status (13)
Country | Link |
---|---|
US (1) | US4431828A (de) |
EP (1) | EP0111387B1 (de) |
BG (1) | BG45387A3 (de) |
CA (1) | CA1181754A (de) |
DE (1) | DE3362952D1 (de) |
HK (1) | HK99587A (de) |
HU (1) | HU191160B (de) |
IE (1) | IE56257B1 (de) |
MY (1) | MY8700730A (de) |
PH (1) | PH18265A (de) |
PL (1) | PL142777B1 (de) |
SG (1) | SG69887G (de) |
SU (1) | SU1240358A3 (de) |
Families Citing this family (6)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US4620019A (en) * | 1984-08-23 | 1986-10-28 | Pfizer Inc. | S-6-fluoro-4-aminochroman-4-carboxylic acid derivatives useful as intermediates for sorbinil |
US4551542A (en) * | 1984-09-26 | 1985-11-05 | Pfizer Inc. | Regeneration of 6-fluoro-4-chromanone from 6-fluoro-4-ureidochroman-4-carboxylic acid |
US4966911A (en) * | 1984-11-20 | 1990-10-30 | Washington Research Foundation | Immunoregulatory agents |
US5340829A (en) * | 1984-11-20 | 1994-08-23 | Washington Research Foundation | Immunoregulatory agents |
US4841079A (en) * | 1987-08-07 | 1989-06-20 | Pfizer, Inc. | Process for the production of asymmetric hydantoins |
US8579985B2 (en) | 2006-12-07 | 2013-11-12 | Ihip Surgical, Llc | Method and apparatus for hip replacement |
Family Cites Families (2)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US4130714A (en) * | 1977-05-23 | 1978-12-19 | Pfizer Inc. | Hydantoin therapeutic agents |
US4286098A (en) * | 1980-03-28 | 1981-08-25 | Pfizer Inc. | Process for the preparation of chiral hydantoins |
-
1982
- 1982-11-10 US US06/440,657 patent/US4431828A/en not_active Expired - Fee Related
-
1983
- 1983-11-03 DE DE8383306689T patent/DE3362952D1/de not_active Expired
- 1983-11-03 EP EP83306689A patent/EP0111387B1/de not_active Expired
- 1983-11-08 CA CA000440673A patent/CA1181754A/en not_active Expired
- 1983-11-08 PL PL1983250370A patent/PL142777B1/pl unknown
- 1983-11-09 HU HU842970A patent/HU191160B/hu not_active IP Right Cessation
- 1983-11-09 IE IE2620/83A patent/IE56257B1/en not_active IP Right Cessation
- 1983-11-09 PH PH29805A patent/PH18265A/en unknown
- 1983-11-09 BG BG076699A patent/BG45387A3/xx unknown
-
1984
- 1984-07-02 SU SU843757904A patent/SU1240358A3/ru active
-
1987
- 1987-08-27 SG SG698/87A patent/SG69887G/en unknown
- 1987-12-24 HK HK995/87A patent/HK99587A/xx unknown
- 1987-12-30 MY MY730/87A patent/MY8700730A/xx unknown
Also Published As
Publication number | Publication date |
---|---|
US4431828A (en) | 1984-02-14 |
IE56257B1 (en) | 1991-06-05 |
MY8700730A (en) | 1987-12-31 |
HK99587A (en) | 1987-12-31 |
EP0111387A1 (de) | 1984-06-20 |
HU191160B (en) | 1987-01-28 |
BG45387A3 (bg) | 1989-05-15 |
PL250370A1 (en) | 1985-06-04 |
PH18265A (en) | 1985-05-14 |
IE832620L (en) | 1984-05-10 |
CA1181754A (en) | 1985-01-29 |
PL142777B1 (en) | 1987-11-30 |
HUT36110A (en) | 1985-08-28 |
SG69887G (en) | 1988-02-19 |
EP0111387B1 (de) | 1986-04-09 |
SU1240358A3 (ru) | 1986-06-23 |
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Legal Events
Date | Code | Title | Description |
---|---|---|---|
8364 | No opposition during term of opposition | ||
8339 | Ceased/non-payment of the annual fee |