Patent US3940403A successfully refreshed from Google Patents.
US3940403A
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Substituted acetic acid derivatives and production thereof
Assignee: Shionogi and Co Ltd
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Filing: 1973-05-14
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Granted: 1976-02-24
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Expires: 1993-05-14
Abstract
Abstract Substituted acetic acid derivatives represented by the formula:
Inventors
- 👤 Ryozo Maeda
- 👤 Katsumi Hirose
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-06 09:33
CPC Classifications
C; C07; C07D; C07D213/00; C07D213/02; C07D213/04; C07D213/60; C07D213/62; C07D213/63; C07D213/64; C07D213/643; A; A61; A61P; A61P25/00; A61P25/04; A61P29/00; C07D213/70; C07D213/78; C07D213/81; C07D213/82; C07D213/84; C07D213/85; C07D213/89; C07D215/00; C07D215/02; C07D215/16; C07D215/20; C07D215/22; C07D215/227; C07D215/36; C07D215/58; C07D215/60; C07D217/00; C07D217/22; C07D217/24
Claims Analysis
Total Claims: 25
Claim 1
Independent Claim
63 words
A compound selected from the group consisting of: 2-(2-chlorophenoxy-4-pyridyl)propionic acid 2-(2-phenoxy-4-pyridyl)propionic acid 2-(2-m-chlorophenoxy-4-pyridyl)propionic acid 2-(2-phenoxy-5-pyridyl)propionic acid 2-(2-p-chlorophenoxy-5-pyridyl)propionic acid 2-(2-phenylthio-5-pyridyl)propionic acid 2-(2-p-tolyloxy-5-pyridyl)propionic acid 2-(2-p-chlorophenylthio-4-pyridyl)propionic acid 2-(3-phenoxy-5-pyridyl)propionic acid 2-(2-phenoxy-4-methyl-5-pyridyl)propionic acid 2-(2-phenoxy-6-methyl-5-pyridyl)propionic acid 2-[2-(2,3-xylyloxy)-5-pyridyl]propionic acid 2-[2-(3,4-xylyloxy)-5-pyridyl]propionic acid 2-[2-(2,3-xylyloxy)-4-pyridyl]propionic acid 2-(2-phenoxy-3-methyl-5-pyridyl)propionic acid 2-[2-(2,4-xylyloxy)-5-pyridyl]propionic acid 2-(2-o-tolyloxy-5-pyridyl)propionic acid 2-(2-p-isobutylphenoxy-5-pyridyl)propionic acid 2-(2-o-chlorophenoxy-4-pyridyl)propionic acid 2-(2-m-chlorophenoxy-5-pyridyl)propionic acid 2-(2-o-chlorophenoxy-5-pyridyl)propionic acid 2-(2-phenoxy-5-pyridyl)propionic acid-N-oxide 2-(2-p-tolyloxy-4-pyridyl)propionic acid or alkali metal or alkaline earth metal salts thereof.
Claim 2
Dependent Claim
63 words
A compound selected from the group consisting of: 2-(2-chlorophenoxy-4-pyridyl)propionic acid 2-(2-phenoxy-4-pyridyl)propionic acid 2-(2-m-chlorophenoxy-4-pyridyl)propionic acid 2-(2-phenoxy-5-pyridyl)propionic acid 2-(2-p-chlorophenoxy-5-pyridyl)propionic acid 2-(2-phenylthio-5-pyridyl)propionic acid 2-(2-p-tolyloxy-5-pyridyl)propionic acid 2-(2-p-chlorophenylthio-4-pyridyl)propionic acid 2-(3-phenoxy-5-pyridyl)propionic acid 2-(2-phenoxy-4-methyl-5-pyridyl)propionic acid 2-(2-phenoxy-6-methyl-5-pyridyl)propionic acid 2-[2-(2,3-xylyloxy)-5-pyridyl]propionic acid 2-[2-(3,4-xylyloxy)-5-pyridyl]propionic acid 2-[2-(2,3-xylyloxy)-4-pyridyl]propionic acid 2-(2-phenoxy-3-methyl-5-pyridyl)propionic acid 2-[2-(2,4-xylyloxy)-5-pyridyl]propionic acid 2-(2-o-tolyloxy-5-pyridyl)propionic acid 2-(2-p-isobutylphenoxy-5-pyridyl)propionic acid 2-(2-o-chlorophenoxy-4-pyridyl)propionic acid 2-(2-m-chlorophenoxy-5-pyridyl)propionic acid 2-(2-o-chlorophenoxy-5-pyridyl)propionic acid 2-(2-phenoxy-5-pyridyl)propionic acid-N-oxide 2-(2-p-tolyloxy-4-pyridyl)propionic acid or alkali metal or alkaline earth metal salts thereof.
Claim 3
Dependent Claim
9 words
A compound according to claim 1, namely, 2-(2-o-tolyloxy-5-pyridyl)propionic acid.
Claim 4
Dependent Claim
9 words
A compound according to claim 1, namely, 2-(2-p-isobutylphenoxy-5-pyridyl)propionic acid.
Claim 5
Dependent Claim
9 words
A compound according to claim 1, namely, 2-(2-o-chlorophenoxy-4-pyridyl)propionic acid.
Claim 6
Dependent Claim
9 words
A compound according to claim 1, namely, 2-(2-m-chlorophenoxy-5-pyridyl)propionic acid.
Claim 7
Dependent Claim
9 words
A compound according to claim 1, namely, 2-(2-o-chlorophenoxy-5-pyridyl)propionic acid.
Claim 8
Dependent Claim
9 words
A compound according to claim 1, namely, 2-(2-phenoxy-5-pyridyl)propionic acid-N-oxide.
Claim 9
Dependent Claim
9 words
A compound according to claim 1, namely, 2-(2-p-tolyloxy-4-pyridyl)propionic acid.
Claim 10
Dependent Claim
9 words
A compound according to claim 1, namely 2-(2-p-chlorophenoxy-4-pyridyl)propionic acid.
Claim 11
Dependent Claim
9 words
A compound according to claim 1, namely 2-(2-phenoxy-4-pyridyl)propionic acid.
Claim 12
Dependent Claim
9 words
A compound according to claim 1, namely 2-(2-m-chlorophenoxy-4-pyridyl)propionic acid.
Claim 13
Dependent Claim
9 words
A compound according to claim 1, namely 2-(2-phenoxy-5-pyridyl)propionic acid.
Claim 14
Dependent Claim
9 words
A compound according to claim 1, namely 2-(2-p-chlorophenoxy-5-pyridyl)propionic acid.
Claim 15
Dependent Claim
9 words
A compound according to claim 1, namely 2-(2-phenylthio-5-pyridyl)propionic acid.
Claim 16
Dependent Claim
9 words
A compound according to claim 1, namely 2-(2-p-tolyloxy-5-pyridyl)propionic acid.
Claim 17
Dependent Claim
9 words
A compound according to claim 1, namely 2-(2-p-chlorophenylthio-4-pyridyl)propionic acid.
Claim 18
Dependent Claim
9 words
A compound according to claim 1, namely 2-(3-phenoxy-5-pyridyl)propionic acid.
Claim 19
Dependent Claim
9 words
A compound according to claim 1, namely 2-(2-phenoxy-4-methyl-5-pyridyl)propionic acid.
Claim 20
Dependent Claim
9 words
A compound according to claim 1, namely 2-(2-phenoxy-6-methyl-5-pyridyl)propionic acid.
Claim 21
Dependent Claim
9 words
A compound according to claim 1, namely 2-[2-(2,3-xylyloxy)-5-pyridyl]propionic acid.
Claim 22
Dependent Claim
9 words
A compound according to claim 1, namely 2-[2-(3,4-xylyloxy)-5-pyridyl]propionic acid.
Claim 23
Dependent Claim
9 words
A compound according to claim 1, namely 2-[2-(2,3-xylyloxy)-4-pyridyl]propionic acid.
Claim 24
Dependent Claim
9 words
A compound according to claim 1, namely 2-(2-phenoxy-3-methyl-5-pyridyl)propionic acid.
Claim 25
Dependent Claim
9 words
A compound according to claim 1, namely 2-[2-(2,4-xylyloxy)-5-pyridyl]propionic acid.
References Cited (Backward Citations)
US3655679A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1979-02-23 | 1979-08-25 | 1980-02-24 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1983-02-23 | 1983-08-25 | 1984-02-24 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1987-02-23 | 1987-08-25 | 1988-02-24 | $7700.00 | Window Closed / Lapsed |