US4338251A
Expired / Lapsed
US
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Two-functional-group-containing terpenoids, processes for the preparation of the same, and anti-ulcer agents containing the same
Assignee: Eisai Co Ltd
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Filing: 1980-12-29
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Granted: 1982-07-06
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Expires: 2000-12-29
Abstract
Abstract A process for the preparation of a two-functional-group-containing terpenoid having the general formula: <IMAGE> in which n is an integer of from 1 to 5, R represents a hydroxymethyl, formyl or carboxyl group, and A represents the hydrogen atom, or a 2-tetrahydropyranyl, benzyl, methoxymethol or methoxyethoxymethyl group comprising the oxidation with a microorganism belonging to the genus Nocardia. Some of the terpenoids are of value as anti-ulcer agents, while others are useful as intermediates.
Inventors
- 👤 Akio Sato
- 👤 Kenji Nakajima
- 👤 Yoshimasa Takahara
- 👤 Shizumasa Kijima
- 👤 Noriaki Kuwana
- 👤 Shinya Abe
- 👤 Kouzi Yamada
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-02 22:38
CPC Classifications
C; C12; C12P; C12P7/00; C12P7/64; C12P7/6409; C12P7/6427; C12P7/6432; A; A61; A61K; A61K31/00; A61K31/11; A61P; A61P1/00; A61P1/04; C07; C07C; C07C29/00; C07C29/09; C07C29/10; C07C33/00; C07C33/02; C07C47/00; C07C47/20; C07C47/26; C07C47/263; C07C47/277; C07C59/00; C07C59/01; C07C59/40; C07C59/58; C07C59/64; C07C59/66; C07D; C07D307/00; C07D307/02; C07D307/04; C07D307/10; C07D307/12; C07D307/18; C07D307/20; C07D309/00; C07D309/02; C07D309/08; C07D309/10; C07D309/12; C12N; C12N1/00; C12N1/20; C12N1/205; C12P17/00; C12P17/02; C12P17/06; C12P7/02; C12P7/24; C12P7/40; C12R; C12R2001/00; C12R2001/01; C12R2001/365; Y; Y02; Y02P; Y02P20/00; Y02P20/50; Y02P20/55; Y02P20/582
Claims Analysis
Total Claims: 8
Claim 1
Independent Claim
4 words
The compound 12-hydroxy-2,6,10-trimethyl-2,6,10-dodecatrienoic acid
Claim 2
Dependent Claim
4 words
The compound 12-hydroxy-2,6,10-trimethyl-2,6,10-dodecatrienoic acid
Claim 3
Dependent Claim
4 words
The compound 16-hydroxy-2,6,10,14-tetramethyl-2,6,10,14-hexadecatetraenoic acid.
Claim 4
Dependent Claim
4 words
The compound 16-hydroxy-2,6,10,14-tetramethyl-2,6,10,14-hexadecatetraenoic acid.
Claim 5
Dependent Claim
4 words
The compound 20-hydroxy-2,6,10,14,18-pentamethyl-2,6,10,14,18-eicosapentaenoic acid.
Claim 6
Dependent Claim
4 words
The compound 20-hydroxy-2,6,10,14,18-pentamethyl-2,6,10,14,18-eicosapentaenoic acid.
Claim 7
Dependent Claim
4 words
The compound 24-hydroxy-2,6,10,14,18,22-hexamethyl-2,6,10,14,18,22-tetracosahexaenoic acid.
Claim 8
Dependent Claim
4 words
The compound 24-hydroxy-2,6,10,14,18,22-hexamethyl-2,6,10,14,18,22-tetracosahexaenoic acid.
References Cited (Backward Citations)
No citation records indexed.
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1985-07-05 | 1986-01-04 | 1986-07-06 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1989-07-05 | 1990-01-04 | 1990-07-06 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1993-07-05 | 1994-01-04 | 1994-07-06 | $7700.00 | Window Closed / Lapsed |