MY8700730A - Regeneration of 6-fluoro-4-chromanone from by-products in the synthesis - Google Patents

Regeneration of 6-fluoro-4-chromanone from by-products in the synthesis

Info

Publication number
MY8700730A
MY8700730A MY730/87A MY8700730A MY8700730A MY 8700730 A MY8700730 A MY 8700730A MY 730/87 A MY730/87 A MY 730/87A MY 8700730 A MY8700730 A MY 8700730A MY 8700730 A MY8700730 A MY 8700730A
Authority
MY
Malaysia
Prior art keywords
chromanone
fluoro
regeneration
synthesis
products
Prior art date
Application number
MY730/87A
Other languages
English (en)
Inventor
Berkeley W Cue
Philip D Hammen
Massett Stephens
Original Assignee
Pfizer
Priority date (The priority date 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 date listed.)
Filing date
Publication date
Application filed by Pfizer filed Critical Pfizer
Publication of MY8700730A publication Critical patent/MY8700730A/xx

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)
  • Plural Heterocyclic Compounds (AREA)
  • Pharmaceuticals Containing Other Organic And Inorganic Compounds (AREA)
MY730/87A 1982-11-10 1987-12-30 Regeneration of 6-fluoro-4-chromanone from by-products in the synthesis MY8700730A (en)

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
MY8700730A true MY8700730A (en) 1987-12-31

Family

ID=23749651

Family Applications (1)

Application Number Title Priority Date Filing Date
MY730/87A MY8700730A (en) 1982-11-10 1987-12-30 Regeneration of 6-fluoro-4-chromanone from by-products in the synthesis

Country Status (13)

Country Link
US (1) US4431828A (xx)
EP (1) EP0111387B1 (xx)
BG (1) BG45387A3 (xx)
CA (1) CA1181754A (xx)
DE (1) DE3362952D1 (xx)
HK (1) HK99587A (xx)
HU (1) HU191160B (xx)
IE (1) IE56257B1 (xx)
MY (1) MY8700730A (xx)
PH (1) PH18265A (xx)
PL (1) PL142777B1 (xx)
SG (1) SG69887G (xx)
SU (1) SU1240358A3 (xx)

Families Citing this family (6)

* Cited by examiner, † Cited by third party
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)

* Cited by examiner, † Cited by third party
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

Also Published As

Publication number Publication date
BG45387A3 (xx) 1989-05-15
SG69887G (en) 1988-02-19
HK99587A (en) 1987-12-31
IE56257B1 (en) 1991-06-05
DE3362952D1 (en) 1986-05-15
SU1240358A3 (ru) 1986-06-23
PL250370A1 (en) 1985-06-04
US4431828A (en) 1984-02-14
EP0111387B1 (en) 1986-04-09
CA1181754A (en) 1985-01-29
IE832620L (en) 1984-05-10
PL142777B1 (en) 1987-11-30
EP0111387A1 (en) 1984-06-20
HUT36110A (en) 1985-08-28
PH18265A (en) 1985-05-14
HU191160B (en) 1987-01-28

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