US4107193A
Expired / Lapsed
US
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Polyprenyl carboxylic acid compound
Assignee: Eisai Co Ltd
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Filing: 1977-05-13
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Granted: 1978-08-15
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Expires: 1997-05-13
Abstract
Abstract A polyprenyl carboxylic acid compound represented by the following general formula: ##STR1## wherein R stands for a hydrogen atom or an alkyl, alkenyl, cycloalkyl or aryl group, and n is an integer of 6 to 11. This compound is effective to treat hypertension of warm blooded animals.
Inventors
- 👤 Shizumasa Kijima
- 👤 Toshiji Igarashi
- 👤 Isao Yamatsu
- 👤 Kimio Hamamura
- 👤 Yoshikage Nakajima
- 👤 Norio Minami
- 👤 Youji Yamagishi
- 👤 Yuithi Inai
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-05 05:03
CPC Classifications
C; C07; C07C; C07C57/00; C07C57/02; C07C57/03; A; A61; A61P; A61P9/00; A61P9/12
Claims Analysis
Total Claims: 19
Claim 1
Independent Claim
32 words
A polyprenyl carboxylic acid compound having the formula: ##STR4## wherein R is hydrogen, alkyl, alkenyl, cycloalkyl or aryl, and n is an integer of 6 to 11, and pharmacologically acceptable salts thereof.
Claim 2
Dependent Claim
32 words
A polyprenyl carboxylic acid compound having the formula: ##STR4## wherein R is hydrogen, alkyl, alkenyl, cycloalkyl or aryl, and n is an integer of 6 to 11, and pharmacologically acceptable salts thereof.
Claim 3
Dependent Claim
19 words
A polyprenyl carboxylic acid compound as set forth in claim 1 wherein n is 6 and R is ethyl.
Claim 4
Dependent Claim
19 words
A polyprenyl carboxylic acid compound as set forth in claim 1 wherein n is 7 and R is ethyl.
Claim 5
Dependent Claim
19 words
A polyprenyl carboxylic acid compound as set forth in claim 1 wherein n is 8 and R is ethyl.
Claim 6
Dependent Claim
19 words
A polyprenyl carboxylic acid compound as set forth in claim 1 wherein n is 9 and R is methyl.
Claim 7
Dependent Claim
19 words
A polyprenyl carboxylic acid compound as set forth in claim 1 wherein n is 9 and R is ethyl.
Claim 8
Dependent Claim
19 words
A polyprenyl carboxylic acid compound as set forth in claim 1 wherein n is 9 and R is n-butyl.
Claim 9
Dependent Claim
19 words
A polyprenyl carboxylic acid compound as set forth in claim 1 wherein n is 9 and R is t-butyl.
Claim 10
Dependent Claim
19 words
A polyprenyl carboxylic acid compound as set forth in claim 1 wherein n is 9 and R is vinyl.
Claim 11
Dependent Claim
19 words
A polyprenyl carboxylic acid compound as set forth in claim 1 wherein n is 9 and R is cyclohexyl.
Claim 12
Dependent Claim
19 words
A polyprenyl carboxylic acid compound as set forth in claim 1 wherein n is 9 and R is phenyl.
Claim 13
Dependent Claim
19 words
A polyprenyl carboxylic acid compound as set forth in claim 1 wherein n is 10 and R is ethyl.
Claim 14
Dependent Claim
19 words
A polyprenyl carboxylic acid compound as set forth in claim 1 wherein n is 11 and R is ethyl.
Claim 15
Dependent Claim
23 words
A polyprenyl carboxylic acid compound as set forth in claim 1 in which R is alkyl having from 1 to 5 carbon atoms.
Claim 16
Dependent Claim
23 words
A polyprenyl carboxylic acid compound as set forth in claim 1 in which R is alkenyl having from 1 to 5 carbon atoms.
Claim 17
Dependent Claim
16 words
A polyprenyl carboxylic acid compound as set forth in claim 1 in which R is cyclohexyl.
Claim 18
Dependent Claim
16 words
A polyprenyl carboxylic acid compound as set forth in claim 1 in which R is phenyl.
Claim 19
Dependent Claim
33 words
A polyprenyl carboxylic acid compound as set forth in claim 1 in which n is 9 and R is selected from the group consisting of ethyl, methyl, t-butyl, cyclohexyl, n-butyl, vinyl and phenyl.
References Cited (Backward Citations)
US3939202A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1981-08-14 | 1982-02-13 | 1982-08-15 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1985-08-14 | 1986-02-13 | 1986-08-15 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1989-08-14 | 1990-02-13 | 1990-08-15 | $7700.00 | Window Closed / Lapsed |