Patent US3932422A successfully refreshed from Google Patents.
US3932422A
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US
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8-Methylene-3-azabicyclo[3.3.1]non-6-en-4-ones
Assignee: STWB Inc
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Filing: 1974-05-20
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Granted: 1976-01-13
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Expires: 1994-05-20
Abstract
Abstract 6(EQ)-R 4 -1,2,3,4,5,6-Hexahydro-3-R 1 -11(ax)-R 3 -11(eq)-CH 2 Z-2,6-methano-3-benzazocines, useful as analgesic agents and narcotic antagonists, and 1-R 1 -2-Q-4aα-R 3 -5α-R 4 -1,2,3,4,4a,5,10,10a-octahydro-3,5-etheno- (and 3,5-ethano) benzo[g]quinolines, useful as analgesic agents, prepared by heating, with formic acid in an organic solvent or with certain ammonium formates in the absence of a solvent, certain 1,2,3,4,4a,5,10,10a-octahydro-2,5-methanobenzo[g]quinolines, the latter prepared by acid catalyzed cyclization of a 3-benzyl-2-azabicyclo[2.2.2]oct-5-ene.
Inventors
- 👤 William F. Michne
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-08 01:03
CPC Classifications
C; C07; C07D; C07D453/00; C07D453/06; C07D211/00; C07D211/04; C07D211/80; C07D211/82; C07D221/00; C07D221/02; C07D221/22; C07D221/26
Claims Analysis
Total Claims: 4
Claim 1
Independent Claim
20 words
A compound having the formula ##SPC5## where R 2 is hydrogen or lower-alkoxy and R 3 is hydrogen or lower-alkyl.
Claim 2
Dependent Claim
20 words
A compound having the formula ##SPC5## where R 2 is hydrogen or lower-alkoxy and R 3 is hydrogen or lower-alkyl.
Claim 3
Dependent Claim
22 words
A compound according to claim 1 having the formula ##SPC6## where R 2 is hydrogen or lower-alkoxy and R 3 is hydrogen.
Claim 4
Dependent Claim
5 words
2-(4-Methoxybenzyl)-8-methylene-3-azabicyclo-[3.3.1]non-6-en-4-one according to claim 2.
References Cited (Backward Citations)
US3833595A
Cited
US3812134A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1979-01-12 | 1979-07-14 | 1980-01-13 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1983-01-12 | 1983-07-14 | 1984-01-13 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1987-01-12 | 1987-07-14 | 1988-01-13 | $7700.00 | Window Closed / Lapsed |