Patent US3912722A successfully refreshed from Google Patents.
US3912722A
Expired / Lapsed
US
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Novel 6{62 -amino-steroids and production thereof
Assignee: Shionogi and Co Ltd
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Filing: 1973-11-30
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Granted: 1975-10-14
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Expires: 1993-11-30
Abstract
Abstract Novel 6 Beta -amino-steroids of the formula: WHEREIN R1 is a hydrogen atom or an acyl group, R2 is a hydrogen atom or an aliphatic hydrocarbon group, R3 and R4 are each a hydrogen atom or an alkyl group, or, taken together with the adjacent nitrogen atom and with or without another hetero atom, form a nitrogen containing heterocyclic ring, and salts thereof, useful as hypocholesterolemic agents, hypolipidemic agents, antitumor agents or antiviral agents.
Inventors
- 👤 Fumikazu Mukawa
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-08 08:54
CPC Classifications
C; C07; C07J; C07J43/00; C07J43/003; C07J41/00; C07J41/0005; C07J41/0011
Claims Analysis
Total Claims: 12
Claim 1
Independent Claim
21 words
A COMPOUND SELECTED FROM THE GROUP CONSISTING OF 6B-PROPYLAMINO-5A-CHOLESTANE-3B,5-DIOL, 6B-ISOPROPYLAMINO-5A-CHOLESTANE-3B,K-DIOL, 6B-ISOPROPYLAMINO-STIGMAST-22-EN-3B,5-DIOL, 6B-ISOPROPYLAMINO-STIGMASTANE-3B,5A-DOL. 6B-PIPERIDINO-STIGMAST-22-EN-3B,5A-DIOL, 6B-ISOPROPYLAMINO-5A-PREGNAN-3B,5-DIOL 6B-ISOPROPYLAMINO-5A-ANDROSTANE-3B,5-DIOL, 6B-ADAMANTYLAMINO-5A-CHOLESTANE-3B,5-DIOL, 6B-TERT-BUTYLAMINO-5A-CHOLESTANE-3B,5-DIOL, 3B-ACETOXY-6B-ISOPROPYLAMINO-CHOLESTAN-5A-OL, 3B-ACETOXY-6B-ISOPROPYLAMINO-STIGMAST-22-EN-5A-OL, AND 3B-BENZOYLOXY-6B-ISOPROPYLAMINO-5A-CHOLESTAN-5-OL,
Claim 2
Dependent Claim
21 words
A COMPOUND SELECTED FROM THE GROUP CONSISTING OF 6B-PROPYLAMINO-5A-CHOLESTANE-3B,5-DIOL, 6B-ISOPROPYLAMINO-5A-CHOLESTANE-3B,K-DIOL, 6B-ISOPROPYLAMINO-STIGMAST-22-EN-3B,5-DIOL, 6B-ISOPROPYLAMINO-STIGMASTANE-3B,5A-DOL. 6B-PIPERIDINO-STIGMAST-22-EN-3B,5A-DIOL, 6B-ISOPROPYLAMINO-5A-PREGNAN-3B,5-DIOL 6B-ISOPROPYLAMINO-5A-ANDROSTANE-3B,5-DIOL, 6B-ADAMANTYLAMINO-5A-CHOLESTANE-3B,5-DIOL, 6B-TERT-BUTYLAMINO-5A-CHOLESTANE-3B,5-DIOL, 3B-ACETOXY-6B-ISOPROPYLAMINO-CHOLESTAN-5A-OL, 3B-ACETOXY-6B-ISOPROPYLAMINO-STIGMAST-22-EN-5A-OL, AND 3B-BENZOYLOXY-6B-ISOPROPYLAMINO-5A-CHOLESTAN-5-OL,
Claim 3
Dependent Claim
14 words
A 6 Beta -Amino-steroid selected from the group consisting of compounds of the formula
Claim 4
Dependent Claim
14 words
A 6 Beta -Amino-steroid selected from the group consisting of compounds of the formula
Claim 5
Dependent Claim
14 words
A 6 Beta -Amino-steroid selected from the group consisting of compounds of the formula
Claim 6
Dependent Claim
14 words
A 6 Beta -Amino-steroid selected from the group consisting of compounds of the formula
Claim 7
Dependent Claim
14 words
A 6 Beta -Amino-steroid selected from the group consisting of compounds of the formula
Claim 8
Dependent Claim
14 words
A 6 Beta -Amino-steroid selected from the group consisting of compounds of the formula
Claim 9
Dependent Claim
14 words
A 6 Beta -Amino-steroid selected from the group consisting of compounds of the formula
Claim 10
Dependent Claim
14 words
A 6 Beta -Amino-steroid selected from the group consisting of compounds of the formula
Claim 11
Dependent Claim
14 words
A 6 Beta -Amino-steroid selected from the group consisting of compounds of the formula
Claim 12
Dependent Claim
14 words
A 6 Beta -Amino-steroid selected from the group consisting of compounds of the formula
References Cited (Backward Citations)
US3123623A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1978-10-13 | 1979-04-14 | 1979-10-14 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1982-10-13 | 1983-04-14 | 1983-10-14 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1986-10-13 | 1987-04-14 | 1987-10-14 | $7700.00 | Window Closed / Lapsed |