US4175201A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Chemical synthesis
Assignee: University of Chicago
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Filing: 1977-04-18
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Granted: 1979-11-20
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Expires: 1997-04-18
Abstract
Abstract This invention relates to pharmacologically active compounds of the formula: ##STR1## wherein Z is trans--CH═CH, C.tbd.C; or CH 2 --CH 2 ; M is H or lower alkyl; n is an integer of from 2 to 5; X is alkyl; W is H or OR, wherein R is H, acyl, or alkyl; each Y is H, OH or alkoxy; and to novel intermediates and processes useful in the production thereof.
Inventors
- 👤 Josef Fried
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-05 05:03
CPC Classifications
C; C07; C07C; C07C405/00; C07C405/0008; C07C405/0033
Claims Analysis
Total Claims: 4
Claim 1
Independent Claim
63 words
A compound of the formula, ##STR10## wherein M is H, or lower alkyl; Y is H, OH, acyloxy or lower alkoxy; X is alkyl of from 4 to 8 carbon atoms; R is H, acyl or lower alkoxy; n is an integer from 2 to 5; and wherein the acyl moiety is derived from hydrocarbon carboxylic acids of twelve carbon atoms or less.
Claim 2
Dependent Claim
63 words
A compound of the formula, ##STR10## wherein M is H, or lower alkyl; Y is H, OH, acyloxy or lower alkoxy; X is alkyl of from 4 to 8 carbon atoms; R is H, acyl or lower alkoxy; n is an integer from 2 to 5; and wherein the acyl moiety is derived from hydrocarbon carboxylic acids of twelve carbon atoms or less.
Claim 3
Dependent Claim
44 words
A compound of the formula, ##STR11## wherein V is H, acyl derived from a hydrocarbon carboxylic acid of twelve carbon atoms or less, lower alkyl, or benzyl; W is H or OR; and M, R, N and X are as defined in claim 1.
Claim 4
Dependent Claim
18 words
A compound of the formula, ##STR12## wherein X, W, M and n are as defined in claim 1.
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) | 1982-11-19 | 1983-05-21 | 1983-11-20 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1986-11-19 | 1987-05-21 | 1987-11-20 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1990-11-19 | 1991-05-21 | 1991-11-20 | $7700.00 | Window Closed / Lapsed |