Patent US4018820A successfully refreshed from Google Patents.
US4018820A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Chemical synthesis
Assignee: University of Chicago
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Filing: 1974-09-05
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Granted: 1977-04-19
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Expires: 1994-09-05
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; and 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 06:57
CPC Classifications
C; C07; C07C; C07C405/00; C07C405/0008; C07C405/0033; C07C271/00; C07C271/06
Claims Analysis
Total Claims: 7
Claim 1
Independent Claim
56 words
A compound of the formula: ##STR10## wherein M is H, or lower alkyl; Y is OH, acyloxy, or lower alkoxy; X is lower alkyl; R is H, acyl, or lower alkyl; n is an integer from 2 to 5; and wherein the acyl radicals are derived from hydrocarbon carboxylic acids of 12 carbon atoms or less.
Claim 2
Dependent Claim
56 words
A compound of the formula: ##STR10## wherein M is H, or lower alkyl; Y is OH, acyloxy, or lower alkoxy; X is lower alkyl; R is H, acyl, or lower alkyl; n is an integer from 2 to 5; and wherein the acyl radicals are derived from hydrocarbon carboxylic acids of 12 carbon atoms or less.
Claim 3
Dependent Claim
22 words
A compound of the formula: ##STR11## wherein Z is CH=CH; and R, n, M and X are as defined in claim 1.
Claim 4
Dependent Claim
17 words
A compound of the formula: ##STR12## wherein n is 4 or 5, m is 4 or 5.
Claim 5
Dependent Claim
17 words
A compound of the formula: ##STR12## wherein n is 4 or 5, m is 4 or 5.
Claim 6
Dependent Claim
6 words
A compound of the formula: ##STR13##
Claim 7
Dependent Claim
6 words
A compound of the formula: ##STR13##
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) | 1980-04-18 | 1980-10-18 | 1981-04-19 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1984-04-18 | 1984-10-18 | 1985-04-19 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1988-04-18 | 1988-10-18 | 1989-04-19 | $7700.00 | Window Closed / Lapsed |