Patent US4131732A successfully refreshed from Google Patents.
US4131732A
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Method for preparing auranofin
Assignee: GlaxoSmithKline LLC
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Filing: 1977-04-21
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Granted: 1978-12-26
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Expires: 1997-04-21
Abstract
Abstract A new synthesis of auranofin comprising reacting 2,3,4,6-tetra-O-acetyl-α-D-glucopyranosyl bromide with triethylphosphinegold(I) chloride and sodium or potassiumsulfide. Auranofin is an antiarthritic pharmaceutical compound. Auranofin is an orally active therapeutic agent which is useful in man as an antiarthritic.
Inventors
- 👤 David T. Hill
- 👤 Blaine M. Sutton
- 👤 Ivan Lantos
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-07 06:32
CPC Classifications
C; C07; C07H; C07H23/00; A; A61; A61P; A61P19/00; A61P19/02
Claims Analysis
Total Claims: 6
Claim 1
Independent Claim
39 words
The method of preparing auranofin comprising reacting a compound of the structure: ##STR2## in which Ac is acetyl and Y is bromo, chloro, tosyloxy, brosyloxy, trifluoromethanesulfonyloxy or mesyloxy with sodium or potassium sulfide and triethylphosphinegold(I) chloride, bromide or iodide.
Claim 2
Independent Claim
39 words
The method of preparing auranofin comprising reacting a compound of the structure: ##STR2## in which Ac is acetyl and Y is bromo, chloro, tosyloxy, brosyloxy, trifluoromethanesulfonyloxy or mesyloxy with sodium or potassium sulfide and triethylphosphinegold(I) chloride, bromide or iodide.
Claim 3
Dependent Claim
13 words
The method of claim 1 in which Y is a α-bromo or 2-chloro.
Claim 4
Dependent Claim
33 words
The method of claim 2 in which triethylphosphinegold(I) chloride is reacted with 2,3,4,6-tetra-O-acetylglucopyranosyl bromide in a biphase solvent system comprised of a halogenated hydrocarbon organic solvent and water until the reaction is complete.
Claim 5
Dependent Claim
11 words
The method of claim 1 in which methylene chloride is used.
Claim 6
Dependent Claim
11 words
The method of claim 3 in which methylene chloride is used.
References Cited (Backward Citations)
US3635945A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1981-12-25 | 1982-06-26 | 1982-12-26 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1985-12-25 | 1986-06-26 | 1986-12-26 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1989-12-25 | 1990-06-26 | 1990-12-26 | $7700.00 | Window Closed / Lapsed |