Patent US3931285A successfully refreshed from Google Patents.
US3931285A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Substituted tolyl esters of PGE1
Assignee: Pharmacia and Upjohn Co
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Filing: 1974-12-12
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Granted: 1976-01-06
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Expires: 1994-12-12
Abstract
Abstract Substituted phenyl and naphthyl esters of PGE 1 , 15-alkyl-PGE 1 , and 15(R)-15-alkyl-PGE 1 , and their racemic forms, and processes for producing them are disclosed. The products are useful for the same pharmacological and medical purposes as PGE 1 , 15-alkyl-PGE 1 , and 15(R)-15-alkyl-PGE 1 , and are also useful as a means for obtaining highly purified PGE 1 , 15-alkyl-PGE 1 , and 15(R)-alkyl-PGE 1 products.
Inventors
- 👤 Walter Morozowich
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-04 12:16
CPC Classifications
C; C07; C07C; C07C405/00
Claims Analysis
Total Claims: 11
Claim 1
Independent Claim
29 words
An optically active compound of the formula: ##SPC20## or a racemic compound of that formula and the mirror image thereof, wherein Z is ##SPC21## and wherein Y is ##EQU5##
Claim 2
Dependent Claim
29 words
An optically active compound of the formula: ##SPC20## or a racemic compound of that formula and the mirror image thereof, wherein Z is ##SPC21## and wherein Y is ##EQU5##
Claim 3
Dependent Claim
14 words
The ester of N-acetyl-L-tyrosinamide and PGE 1 , a compound according to claim 1.
Claim 4
Dependent Claim
14 words
The ester of N-benzoyl-L-tyrosinamide and PGE 1 , a compound according to claim 1.
Claim 5
Dependent Claim
15 words
The ester of p-hydroxybenzaldehyde semicarbazone and PGE 1 , a compound according to claim 1.
Claim 6
Dependent Claim
14 words
The ester of N-acetyl-L-tyrosinamide and 15-methyl-PGE 1 , a compound according to claim 1.
Claim 7
Dependent Claim
14 words
The ester of N-benzoyl-L-tyrosinamide and 15-methyl-PGE 1 , a compound according to claim 1.
Claim 8
Dependent Claim
15 words
The ester of p-hydroxybenzaldehyde semicarbazone and 15-methyl-PGE 1 , a compound according to claim 1.
Claim 9
Dependent Claim
14 words
The ester of N-acetyl-L-tyrosinamide and 15(R)-15-methyl-PGE 1 , a compound according to claim 1.
Claim 10
Dependent Claim
14 words
The ester of N-benzoyl-L-tyrosinamide and 15(R)-15-methyl-PGE 1 , a compound according to claim 1.
Claim 11
Dependent Claim
15 words
The ester of p-hydroxybenzaldehyde semicarbazone and 15(R)-15-methyl-PGE 1 , a compound according to claim 1.
References Cited (Backward Citations)
BE775106A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1979-01-05 | 1979-07-07 | 1980-01-06 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1983-01-05 | 1983-07-07 | 1984-01-06 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1987-01-05 | 1987-07-07 | 1988-01-06 | $7700.00 | Window Closed / Lapsed |