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US4101580A
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3-Amino-4-homoisotwistane and an acid addition salt thereof and a process for producing the same
Assignee: Kao Corp
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Filing: 1976-06-14
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Granted: 1978-07-18
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Expires: 1996-06-14
Abstract
Abstract This invention relates to novel 3-amino-4-homoisotwistane (3-amino-tricyclo [5.3.1.0 3 ,8 ] undecane), an acid addition salt thereof, and to a process for producing the same.
Inventors
- 👤 Yoshiaki Inamoto
- 👤 Hiroshi Ikeda
- 👤 Yoshiaki Fujikura
- 👤 Naotake Takaishi
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-06 09:55
CPC Classifications
C; C07; C07C; C07C211/00; C07C211/33; C07C211/34; C07C211/38; A; A61; A61K; A61K31/00; A61K31/13; A61P; A61P31/00; A61P31/12; C07C2603/00; C07C2603/56; C07C2603/58; C07C2603/70; C07C2603/74
Claims Analysis
Total Claims: 6
Claim 1
Independent Claim
11 words
3-Aminotricyclo [5.3.1.0 3 ,8 ] undecane and acid addition salts thereof.
Claim 2
Dependent Claim
11 words
3-Aminotricyclo [5.3.1.0 3 ,8 ] undecane and acid addition salts thereof.
Claim 3
Dependent Claim
50 words
A process for producing 3-aminotricyclo [5.3.1.0 3 ,8 ] undecane which comprises reacting acetonitrile with a compound of the formula: ##STR5## wherein X is Cl, Br, I, OH or COCH 3 , in the presence of H 2 SO 4 and hydrolyzing the resultant 3-acetylaminotricyclo [5.3.1.0 3 ,8 ] undecane.
Claim 4
Dependent Claim
50 words
A process for producing 3-aminotricyclo [5.3.1.0 3 ,8 ] undecane which comprises reacting acetonitrile with a compound of the formula: ##STR5## wherein X is Cl, Br, I, OH or COCH 3 , in the presence of H 2 SO 4 and hydrolyzing the resultant 3-acetylaminotricyclo [5.3.1.0 3 ,8 ] undecane.
Claim 5
Dependent Claim
19 words
The process of claim 2, wherein the hydrolysis is conducted in alcohol in the presence of an alkaline agent.
Claim 6
Dependent Claim
16 words
The process of claim 2, wherein the hydrolysis is conducted in water by application of heat.
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) | 1981-07-17 | 1982-01-16 | 1982-07-18 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1985-07-17 | 1986-01-16 | 1986-07-18 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1989-07-17 | 1990-01-16 | 1990-07-18 | $7700.00 | Window Closed / Lapsed |