US4275205A
Expired / Lapsed
US
⏱️ 0.0 years remaining
7,7-Ditosyloxymethyl-4,5α-epoxy-morphinan-6-ols
Assignee: Bayer Corp
•
Filing: 1980-05-05
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Granted: 1981-06-23
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Expires: 2000-05-05
Abstract
Abstract Disclosed are 7,7-dimethyl-4,5α-epoxy-morphinan-6-one compounds characterized by the formula: ##STR1## wherein R is H or CH 3 , R 1 is H, CH 3 or CH 2 CH 3 and R 2 is cyclopropylmethyl or cyclobutylmethyl. Particular compounds circumscribed by the foregoing formula are useful as analgesics, narcotic antagonists or mixed analgesics/narcotic antagonists.
Inventors
- 👤 Michael P. Kotick
- 👤 David L. Leland
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-06 10:45
CPC Classifications
C; C07; C07D; C07D489/00; C07D489/02
Claims Analysis
Total Claims: 5
Claim 1
Independent Claim
18 words
A 7,7-ditosyloxymethyl-4,5α-epoxy-3-methoxy-17-methyl-morphinan-6.beta.-ol of the formula: ##STR8## where R is H, CH 3 or CH 2 CH 3 .
Claim 2
Dependent Claim
18 words
A 7,7-ditosyloxymethyl-4,5α-epoxy-3-methoxy-17-methyl-morphinan-6.beta.-ol of the formula: ##STR8## where R is H, CH 3 or CH 2 CH 3 .
Claim 3
Dependent Claim
11 words
A compound as defined in claim 1 wherein R is H.
Claim 4
Dependent Claim
13 words
A compound as defined in claim 1 wherein R is CH 3 .
Claim 5
Dependent Claim
15 words
A compound as defined in claim 1 wherein R is CH 2 CH 3 .
References Cited (Backward Citations)
US2178010A
Cited
DE2900918A1
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1984-06-22 | 1984-12-22 | 1985-06-23 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1988-06-22 | 1988-12-22 | 1989-06-23 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1992-06-22 | 1992-12-22 | 1993-06-23 | $7700.00 | Window Closed / Lapsed |