US4100288A
Expired / Lapsed
US
⏱️ 0.0 years remaining
N-Tetrahydrofurfuryl-noroxymorphones, their salts, and analgesic compositions and methods employing them
Assignee: Boehringer Ingelheim GmbH
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Filing: 1976-08-13
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Granted: 1978-07-11
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Expires: 1996-08-13
Abstract
Abstract Diastereoisomers of the compound of the formula ##STR1## and non-toxic, pharmacologically acceptable acid addition salts thereof; the isomers as well as their salts are useful as analgesics and morphine-antagonists.
Inventors
- 👤 Herbert Merz
- 👤 Gerhard Walther
- 👤 Adolf Langbein
- 👤 Klaus Stockhaus
- 👤 Helmut Wick
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-06 06:34
CPC Classifications
C; C07; C07D; C07D489/00; C07D489/06; C07D489/08; A; A61; A61P; A61P25/00; A61P25/04; A61P25/30
Claims Analysis
Total Claims: 4
Claim 1
Independent Claim
10 words
N-(R-tetrahydrofurfuryl)-noroxymorphone or a non-toxic, pharmacologically acceptable acid addition salt thereof.
Claim 2
Dependent Claim
10 words
N-(R-tetrahydrofurfuryl)-noroxymorphone or a non-toxic, pharmacologically acceptable acid addition salt thereof.
Claim 3
Dependent Claim
24 words
An analgesic pharmaceutical dosage unit composition consisting essentially of an inert pharmaceutical carrier and an effective analgesic amount of a compound of claim 1.
Claim 4
Dependent Claim
29 words
The method of relieving pain in a warm-blooded animal, which comprises perorally, parenterally or rectally administering to said animal an effective analgesic amount of a compound of claim 1.
References Cited (Backward Citations)
BE660533A
Cited
US3872127A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1981-07-10 | 1982-01-09 | 1982-07-11 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1985-07-10 | 1986-01-09 | 1986-07-11 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1989-07-10 | 1990-01-09 | 1990-07-11 | $7700.00 | Window Closed / Lapsed |