US4062815A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Resin peptides
Assignee: Aventis Pharmaceuticals Inc
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Filing: 1975-09-22
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Granted: 1977-12-13
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Expires: 1995-09-22
Abstract
Abstract Resin peptides useful in the preparation of salmon calcitonin are disclosed along with processes for preparing the same. The invention also embraces peptides from which the resin moiety has been cleaved and which are useful in the synthesis of salmon calcitonin together with processes for preparing the cleaved peptides. In general, the processes involve the solid phase synthesis procedures.
Inventors
- 👤 John Lawrence Hughes
- 👤 Jay Kenneth Seyler
- 👤 Robert Chung-Huang Liu
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-01 23:58
CPC Classifications
C; C07; C07K; C07K14/00; C07K14/435; C07K14/575; C07K14/585; A; A61; A61K; A61K38/00; Y; Y02; Y02P; Y02P20/00; Y02P20/50; Y02P20/55; Y10; Y10S; Y10S930/00; Y10S930/01; Y10S930/28
Claims Analysis
Total Claims: 4
Claim 1
Independent Claim
27 words
A resin peptide having the structure: ##STR27## where X is divinylbenzene crosslinked polystyrene resin and BZ is benzyl, 4-methoxybenzyl, 3-4 dimethylbenzyl, 4-chlorobenzyl, 2-6 dichlorobenzyl, 4-nitrobenzyl, or benzhydryl.
Claim 2
Dependent Claim
27 words
A resin peptide having the structure: ##STR27## where X is divinylbenzene crosslinked polystyrene resin and BZ is benzyl, 4-methoxybenzyl, 3-4 dimethylbenzyl, 4-chlorobenzyl, 2-6 dichlorobenzyl, 4-nitrobenzyl, or benzhydryl.
Claim 3
Dependent Claim
32 words
A resin peptide having the structure: ##STR28## where X is divinylbenzene crosslinked polystyrene resin BZ is benzyl, 4-methylbenzyl, 3-4 dimethylbenzyl, 4-chlorobenzyl, 2-6 dichlorobenzyl, 4-nitrobenzyl, or benzhydryl, and T is nitro or tosyl.
Claim 4
Dependent Claim
32 words
A resin peptide having the structure: ##STR28## where X is divinylbenzene crosslinked polystyrene resin BZ is benzyl, 4-methylbenzyl, 3-4 dimethylbenzyl, 4-chlorobenzyl, 2-6 dichlorobenzyl, 4-nitrobenzyl, or benzhydryl, and T is nitro or tosyl.
References Cited (Backward Citations)
US3891614A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1980-12-12 | 1981-06-13 | 1981-12-13 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1984-12-12 | 1985-06-13 | 1985-12-13 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1988-12-12 | 1989-06-13 | 1989-12-13 | $7700.00 | Window Closed / Lapsed |