US4154942A
Expired / Lapsed
US
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Certain tetrahydropyridine-2-carboxylic acids and pyrroline-2-carboxylic acids and derivatives thereof
Assignee: ER Squibb and Sons LLC
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Filing: 1978-08-15
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Granted: 1979-05-15
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Expires: 1998-08-15
Abstract
Abstract New compounds which have the general formula ##STR1## are useful as hypotensive agents.
Inventors
- 👤 Miguel A. Ondetti
- 👤 Sehsea I. Natarajan
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-23 22:29
CPC Classifications
C; C07; C07D; C07D211/00; C07D211/04; C07D211/68; C07D211/72; C07D211/78; A; A61; A61P; A61P43/00; A61P9/00; A61P9/12; C07C; C07C327/00; C07D207/00; C07D207/02; C07D207/18; C07D207/22
Claims Analysis
Total Claims: 12
Claim 1
Independent Claim
34 words
A compound of the formula ##STR12## wherein R and R 2 each is hydrogen or lower alkyl; R 1 is lower alkanoyl m and n each is 0 or 1; and basic salts thereof.
Claim 2
Dependent Claim
34 words
A compound of the formula ##STR12## wherein R and R 2 each is hydrogen or lower alkyl; R 1 is lower alkanoyl m and n each is 0 or 1; and basic salts thereof.
Claim 3
Dependent Claim
29 words
A compound as in claim 1 wherein R and R 2 each is hydrogen or lower alkyl; R 1 is lower alkanoyl and m and n each is 0.
Claim 4
Dependent Claim
14 words
A compound as in claim 1 wherein R and R 2 each is hydrogen.
Claim 5
Dependent Claim
10 words
A compound as in claim 1 wherein R is hydrogen.
Claim 6
Dependent Claim
10 words
A compound as in claim 1 wherein n is 1.
Claim 7
Dependent Claim
10 words
A compound as in claim 1 wherein m is 0.
Claim 8
Dependent Claim
10 words
A compound as in claim 1 wherein m is 1.
Claim 9
Dependent Claim
11 words
A compound as in claim 4 wherein R 1 is acetyl.
Claim 10
Dependent Claim
18 words
A compound as in claim 3 wherein R 1 is acetyl; m is 0 and n is 1.
Claim 11
Dependent Claim
22 words
A compound as in claim 4 wherein R 1 is acetyl; R 2 is methyl; m is 0; and n is 0.
Claim 12
Dependent Claim
21 words
A compound as in claim 4 wherein R 1 is acetyl; R 2 is methyl; m and n each is 1.
References Cited (Backward Citations)
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1982-05-14 | 1982-11-13 | 1983-05-15 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1986-05-14 | 1986-11-13 | 1987-05-15 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1990-05-14 | 1990-11-13 | 1991-05-15 | $7700.00 | Window Closed / Lapsed |