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US3978071A
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Substituted phenylalkanoic acids and derivatives
Assignee: Tanabe Pharma Corp
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Filing: 1974-07-08
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Granted: 1976-08-31
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Expires: 1994-07-08
Abstract
Abstract Substituted phenylalkanoic acids and derivatives thereof of the formula:
Inventors
- 👤 Michio Nakanishi
- 👤 Tomio Muro
- 👤 Tohru Nakao
- 👤 Kiyoshi Ogawa
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-24 20:54
CPC Classifications
C; C07; C07D; C07D513/00; C07D513/02; C07D513/04; C07D471/00; C07D471/02; C07D471/04; C07D487/00; C07D487/02; C07D487/04
Claims Analysis
Total Claims: 12
Claim 1
Independent Claim
180 words
A member selected from the group consisting of a compound of the formula: ##SPC9## wherein each of R 1 and R 2 is a hydrogen atom or an alkyl group having 1 to 4 carbon atoms; each of X 1 and X 2 is a hydrogen atom, a halogen atom, an alkyl group having 1 to 4 carbon atoms or an alkoxy group having 1 to 4 carbon atoms; and Y is COOH, COOR (wherein R is an alkyl group having 1 to 4 carbon atoms), CONH 2 , CSNH 2 , CN or COZ--A--N(R 3 )(R 4 ) (wherein Z is an oxygen atom or the group =NH, A is an alkylene group having 2 to 4 carbon atoms and each of R 3 and R 4 is a hydrogen atom or an alkyl group having 1 to 4 carbon atoms, or R 3 and R 4 together with the adjacent nitrogen atom form a saturated heterocycle selected from pyrrolidine, piperidine, morpholine, piperazine and piperazine substituted by an alkyl group having 1 to 4 carbon atoms at the 4-position.
Claim 2
Dependent Claim
180 words
A member selected from the group consisting of a compound of the formula: ##SPC9## wherein each of R 1 and R 2 is a hydrogen atom or an alkyl group having 1 to 4 carbon atoms; each of X 1 and X 2 is a hydrogen atom, a halogen atom, an alkyl group having 1 to 4 carbon atoms or an alkoxy group having 1 to 4 carbon atoms; and Y is COOH, COOR (wherein R is an alkyl group having 1 to 4 carbon atoms), CONH 2 , CSNH 2 , CN or COZ--A--N(R 3 )(R 4 ) (wherein Z is an oxygen atom or the group =NH, A is an alkylene group having 2 to 4 carbon atoms and each of R 3 and R 4 is a hydrogen atom or an alkyl group having 1 to 4 carbon atoms, or R 3 and R 4 together with the adjacent nitrogen atom form a saturated heterocycle selected from pyrrolidine, piperidine, morpholine, piperazine and piperazine substituted by an alkyl group having 1 to 4 carbon atoms at the 4-position.
Claim 3
Dependent Claim
93 words
A member selected from the group consisting of a compound of the formula: ##SPC10## wherein each of R 1 and R 2 is a hydrogen atom or an alkyl group having 1 to 4 carbon atoms; each of X 1 and X 2 is a hydrogen atom, a halogen atom, an alkyl group having 1 to 4 carbon atoms or an alkoxy group having 1 to 4 carbon atoms; Y 1 is COOH, COOR (wherein R is an alkyl group having 1 to 4 carbon atoms), CONH 2 , CSNH 2 or CN.
Claim 4
Dependent Claim
93 words
A member selected from the group consisting of a compound of the formula: ##SPC10## wherein each of R 1 and R 2 is a hydrogen atom or an alkyl group having 1 to 4 carbon atoms; each of X 1 and X 2 is a hydrogen atom, a halogen atom, an alkyl group having 1 to 4 carbon atoms or an alkoxy group having 1 to 4 carbon atoms; Y 1 is COOH, COOR (wherein R is an alkyl group having 1 to 4 carbon atoms), CONH 2 , CSNH 2 or CN.
Claim 5
Dependent Claim
148 words
A member selected from the group consisting of a compound of the formula: ##SPC11## wherein each of R 1 and R 2 is a hydrogen atom or an alkyl group having 1 to 4 carbon atoms; each of X 1 and X 2 is a hydrogen atom, a halogen atom, an alkyl group having 1 to 4 carbon atoms or an alkoxy group having 1 to 4 carbon atoms; Z is an oxygen atom or the group = NH; A is an alkylene group having 2 to 4 carbon atoms; each of R 3 and R 4 is a hydrogen atom or an alkyl group having 1 to 4 carbon atoms, or R 3 and R 4 together with the adjacent nitrogen atom form a heterocycle selected from pyrrolidine, piperidine, morpholine, piperazine and piperazine substituted by an alkyl group having 1 to 4 carbon atoms at the 4-position.
Claim 6
Dependent Claim
148 words
A member selected from the group consisting of a compound of the formula: ##SPC11## wherein each of R 1 and R 2 is a hydrogen atom or an alkyl group having 1 to 4 carbon atoms; each of X 1 and X 2 is a hydrogen atom, a halogen atom, an alkyl group having 1 to 4 carbon atoms or an alkoxy group having 1 to 4 carbon atoms; Z is an oxygen atom or the group = NH; A is an alkylene group having 2 to 4 carbon atoms; each of R 3 and R 4 is a hydrogen atom or an alkyl group having 1 to 4 carbon atoms, or R 3 and R 4 together with the adjacent nitrogen atom form a heterocycle selected from pyrrolidine, piperidine, morpholine, piperazine and piperazine substituted by an alkyl group having 1 to 4 carbon atoms at the 4-position.
Claim 7
Dependent Claim
70 words
A member selected from the group consisting of a compound of the formula: ##SPC12## wherein each of R 1 and R 2 is a hydrogen atom or an alkyl group having 1 to 4 carbon atoms; and each of X 1 and X 2 is a hydrogen atom, a halogen atom, an alkyl group having 1 to 4 carbon atoms or an alkoxy group having 1 to 4 carbon atoms.
Claim 8
Dependent Claim
70 words
A member selected from the group consisting of a compound of the formula: ##SPC12## wherein each of R 1 and R 2 is a hydrogen atom or an alkyl group having 1 to 4 carbon atoms; and each of X 1 and X 2 is a hydrogen atom, a halogen atom, an alkyl group having 1 to 4 carbon atoms or an alkoxy group having 1 to 4 carbon atoms.
Claim 9
Dependent Claim
7 words
A compound of claim 1: 2-[4-(imidazo[1,2-a]pyridin-2-yl)phenyl]propionic acid.
Claim 10
Dependent Claim
7 words
A compound of claim 1: 2-[3-chloro-4-(imidazo[1,2-a]pyridin-2-yl)phenyl]propionic acid.
Claim 11
Dependent Claim
7 words
A compound of claim 1: 2-[3-fluoro-4-(imidazo[1,2-a]pyridin-2-yl)phenyl]propionic acid.
Claim 12
Dependent Claim
6 words
A compound of claim 1: 2-[4-(imidazo[1,2-a]pyridin-2-yl)phenyl]propionamide.
References Cited (Backward Citations)
US3318880A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1979-08-31 | 1980-03-01 | 1980-08-31 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1983-08-31 | 1984-03-01 | 1984-08-31 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1987-08-31 | 1988-03-01 | 1988-08-31 | $7700.00 | Window Closed / Lapsed |