US3971793A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Certain 6-(dialkylamino, pyrrolidino and piperidino)ethoxy-4,7-dimethoxy-5-(3-phenyl-1-hydroxypropyl)2,3-dihydrobenzofurans
Assignee: Synthelabo SA
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Filing: 1974-02-01
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Granted: 1976-07-27
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Expires: 1994-02-01
Abstract
Abstract A compound of the formula IN WHICH R is hydrogen, hydroxy, halogen or alkoxy containing up to 3 carbon atoms, and R1 -N ANGLE R2 is dialkylamino in which the alkyls contain up to 3 carbon atoms, or pyrrolidino, piperidino, morpholino or hexamethyleneimino, and n is 2 or 3. The compounds are prepared by reacting R substituted benzaldehyde with a 2,3-dihydrobenzofuran derivative and then reducing that reaction product. The compounds possess antihypertensive, hypotensive, vasodilatatory, spasmolytic, diuretic, sedative, anti-arythmic and anti-inflammatory properties.
Inventors
- 👤 Claude P. Fauran
- 👤 Jeannine A. Eberle
- 👤 Guy R. Bourgery
- 👤 Guy M. Raynaud
- 👤 Bernard M. Pourrias
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-09 23:17
CPC Classifications
C; C07; C07D; C07D307/00; C07D307/77; C07D307/78; C07D307/86
Claims Analysis
Total Claims: 16
Claim 1
Independent Claim
14 words
A compound of the formula ##SPC7## and the pharmaceutically acceptable acid addition salts thereof.
Claim 2
Dependent Claim
14 words
A compound of the formula ##SPC7## and the pharmaceutically acceptable acid addition salts thereof.
Claim 3
Dependent Claim
14 words
A compound of the formula ##SPC8## and the pharmaceutically acceptable acid addition salts thereof.
Claim 4
Dependent Claim
14 words
A compound of the formula ##SPC8## and the pharmaceutically acceptable acid addition salts thereof.
Claim 5
Dependent Claim
14 words
A compound of the formula ##SPC9## and the pharmaceutically acceptable acid addition salts thereof.
Claim 6
Dependent Claim
14 words
A compound of the formula ##SPC9## and the pharmaceutically acceptable acid addition salts thereof.
Claim 7
Dependent Claim
14 words
A compound of the formula ##SPC10## and the pharmaceutically acceptable acid addition salts thereof.
Claim 8
Dependent Claim
14 words
A compound of the formula ##SPC10## and the pharmaceutically acceptable acid addition salts thereof.
Claim 9
Dependent Claim
14 words
A compound of the formula ##SPC11## and the pharmaceutically acceptable acid addition salts thereof.
Claim 10
Dependent Claim
14 words
A compound of the formula ##SPC11## and the pharmaceutically acceptable acid addition salts thereof.
Claim 11
Dependent Claim
14 words
A compound of the formula ##SPC12## and the pharmaceutically acceptable acid addition salts thereof.
Claim 12
Dependent Claim
14 words
A compound of the formula ##SPC12## and the pharmaceutically acceptable acid addition salts thereof.
Claim 13
Dependent Claim
14 words
A compound of the formula ##SPC13## and the pharmaceutically acceptable acid addition salts thereof.
Claim 14
Dependent Claim
14 words
A compound of the formula ##SPC13## and the pharmaceutically acceptable acid addition salts thereof.
Claim 15
Dependent Claim
14 words
A compound of the formula ##SPC14## and the pharmaceutically acceptable acid addition salts thereof.
Claim 16
Dependent Claim
14 words
A compound of the formula ##SPC14## and the pharmaceutically acceptable acid addition salts thereof.
References Cited (Backward Citations)
No citation records indexed.
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1979-07-27 | 1980-01-26 | 1980-07-27 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1983-07-27 | 1984-01-26 | 1984-07-27 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1987-07-27 | 1988-01-26 | 1988-07-27 | $7700.00 | Window Closed / Lapsed |