US3883546A
Expired / Lapsed
US
⏱️ 0.0 years remaining
S-heterocyclic derivatives of phosphine or phosphite gold mercaptides
Assignee: SmithKline Beecham Corp
•
Filing: 1973-08-01
•
Granted: 1975-05-13
•
Expires: 1993-08-01
Abstract
Abstract S-Heterocyclic derivatives of phosphine or phosphite gold mercaptides are prepared by reaction of an heterocyclic mercaptan compound with an appropriate phosphine or phosphite gold halide in the presence of alkali.
Inventors
- 👤 Blaine M Sutton
- 👤 Joseph Weinstock
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-07 14:08
CPC Classifications
C; C07; C07F; C07F9/00; C07F9/02; C07F9/547; C07F9/6536; C07F9/6539; C07F9/6541; A; A61; A61P; A61P29/00; C07F9/645; C07F9/6503; C07F9/6506; C07F9/65068
Claims Analysis
Total Claims: 7
Claim 1
Independent Claim
5 words
A COMPOUND OF THE FORMULA:
Claim 2
Dependent Claim
5 words
A COMPOUND OF THE FORMULA:
Claim 3
Dependent Claim
12 words
A compound as claimed in claim 1 where R1 is lower alkyl.
Claim 4
Dependent Claim
16 words
A compound as claimed in claim 2 where the heterocyclic moiety is 2-thiazolinyl, 2-benzimidazolyl or 2-benzoxazolyl.
Claim 5
Dependent Claim
11 words
A compound as claimed in claim 3 being the compound 2-thiazolinylthio(triethylphosphine)gold.
Claim 6
Dependent Claim
11 words
A compound as claimed in claim 3 being the compound 2-benzimidazolylthio(triethylphosphine)gold.
Claim 7
Dependent Claim
11 words
A compound as claimed in claim 3 being the compound 2-benzoxazolylthio(triethylphosphine)gold.
References Cited (Backward Citations)
US3502690A
Cited
US3755329A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1978-05-12 | 1978-11-11 | 1979-05-13 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1982-05-12 | 1982-11-11 | 1983-05-13 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1986-05-12 | 1986-11-11 | 1987-05-13 | $7700.00 | Window Closed / Lapsed |