US4461902A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Thiazolidine derivatives and production thereof
Assignee: Takeda Pharmaceutical Co Ltd
•
Filing: 1982-12-29
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Granted: 1984-07-24
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Expires: 2002-12-29
Abstract
Abstract A thiazolidine derivative of the general formula, ##STR1## is a cyclohexane ring having an oxo or hydroxyl group as a substituent on any of the methylene groups constituting the ring and R is a hydrogen atom or a lower alkyl group having 1 to 4 carbon atoms, is a novel compound and is useful as, for example, remedies for diabetes, hyperlipemia and so on of mammals including human beings.
Inventors
- 👤 Yutaka Kawamatsu
- 👤 Takeshi Fujita
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-03 16:11
CPC Classifications
C; C07; C07D; C07D277/00; C07D277/02; C07D277/20; C07D277/22; C07D277/24; C07D307/00; C07D307/77; A; A61; A61P; A61P3/00; A61P3/06; A61P3/08; A61P3/10; C07C; C07C59/00; C07C59/40; C07C59/58; C07C59/72; C07C62/00; C07C62/02; C07C62/04; C07D277/32; C07D277/34; C07D309/00; C07D309/02; C07D309/08; C07D309/10; C07D309/12; C07D317/00; C07D317/08; C07D317/72
Claims Analysis
Total Claims: 10
Claim 1
Independent Claim
46 words
A compound of the general formula ##STR25## is a cyclohexane ring having an oxo or hydroxyl group as a substituent on any of the methylene groups constituting the ring and R is a hydrogen atom or a lower alkyl group having 1 to 4 carbon atoms.
Claim 2
Dependent Claim
46 words
A compound of the general formula ##STR25## is a cyclohexane ring having an oxo or hydroxyl group as a substituent on any of the methylene groups constituting the ring and R is a hydrogen atom or a lower alkyl group having 1 to 4 carbon atoms.
Claim 3
Dependent Claim
11 words
A compound as claimed in claim 1, wherein R is methyl.
Claim 4
Dependent Claim
29 words
A compound as claimed in claim 1, wherein ##STR26## is a cyclohexane ring having an oxo group as a substituent on any of the methylene groups constituting the ring.
Claim 5
Dependent Claim
29 words
A compound as claimed in claim 1, wherein ##STR27## is a cyclohexane ring having a hydroxyl group as a substituent on any of the methylene groups constituting the ring.
Claim 6
Dependent Claim
12 words
A compound as claimed in claim 1, wherein the compound is 5-[4-(3-hydroxy-1-methyl-1-cyclohexylmethoxy)benzyl]thiazolidine-2,4-dione
Claim 7
Dependent Claim
12 words
A compound as claimed in claim 1, wherein the compound is 5-[4-(4-hydroxy-1-methyl-1-cyclohexylmethoxy)benzyl]thiazolidine-2,4-dione.
Claim 8
Dependent Claim
12 words
A compound as claimed in claim 1, wherein the compound is 5-[4-(t-3-hydroxy-1-methyl-r-1-cyclohexylmethoxy)benzyl]thiazolidine-2,4-dione.
Claim 9
Dependent Claim
12 words
A compound as claimed in claim 1, wherein the compound is 5-[4-(t-4-hydroxy-1-methyl-r-1-cyclohexylmethoxy)benzyl]thiazolidine-2,4-dione.
Claim 10
Dependent Claim
12 words
A compound as claimed in claim 1, wherein the compound is 5-[4-(c-4-hydroxy-1-methyl-r-1-cyclohexylmethoxy)benzyl]thiazolidine-2,4-dione.
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) | 1987-07-24 | 1988-01-23 | 1988-07-24 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1991-07-24 | 1992-01-23 | 1992-07-24 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1995-07-24 | 1996-01-23 | 1996-07-24 | $7700.00 | Window Closed / Lapsed |