Patent US2713045A successfully refreshed from Google Patents.
US2713045A
Expired / Lapsed
US
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Preparation of peptides
Assignee: C.H. Boehringer Sohn AG and Co KG
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Filing: 1951-03-15
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Granted: 1955-07-12
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Expires: 1971-03-15
Abstract
No abstract record available.
Inventors
- 👤 Wieland Theodor
- 👤 Sehring Richard
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-02 20:56
CPC Classifications
C; C07; C07K; C07K1/00; C07K1/06; C07K1/08
Claims Analysis
Total Claims: 2
Claim 1
Independent Claim
98 words
THE METHOD OF PRODUCING A PEPTIDE CONTAINING AT LEAST ONE PEPTIDE GROUP WHICH COMPRISES REACTING A MIXED EXTERNAL ANHYDRIDE OF A COMPOUND SELECTED FROM THE GROUP CONSISTING OF MONOAMINO-MONOCARBOXYLIC ACIDS AND PEPTIDES CONTAINING AT LEAST ONE PEPTIDE GROUP AND A CARBOXYLIC ACID SELECTED FROM THE GROUP CONSISTING OF ALIPHATIC, AROMATIC AND ALIPHATIC-AROMATIC CARBOXYLIC ACIDS, WITH A COMPOUND SELECTED FROM THE GROUP CONSISTING OF MONOAMINOMONOCARBOXYLIC ACIDS, PEPTIDES CONTAINING AT LEAST ONE PEPTIDE GROUP AND THEIR ESTERS, IN SUBSTANTIALLY STOICHIOMETRIC PROPORTIONS, TO FORM THE DESIRED PEPTIDE AS A SINGLE REACTION PRODUCT, AND SEPARATING THE REACTION PRODUCT FROM THE REACTION MASS.
Claim 2
Independent Claim
98 words
THE METHOD OF PRODUCING A PEPTIDE CONTAINING AT LEAST ONE PEPTIDE GROUP WHICH COMPRISES REACTING A MIXED EXTERNAL ANHYDRIDE OF A COMPOUND SELECTED FROM THE GROUP CONSISTING OF MONOAMINO-MONOCARBOXYLIC ACIDS AND PEPTIDES CONTAINING AT LEAST ONE PEPTIDE GROUP AND A CARBOXYLIC ACID SELECTED FROM THE GROUP CONSISTING OF ALIPHATIC, AROMATIC AND ALIPHATIC-AROMATIC CARBOXYLIC ACIDS, WITH A COMPOUND SELECTED FROM THE GROUP CONSISTING OF MONOAMINOMONOCARBOXYLIC ACIDS, PEPTIDES CONTAINING AT LEAST ONE PEPTIDE GROUP AND THEIR ESTERS, IN SUBSTANTIALLY STOICHIOMETRIC PROPORTIONS, TO FORM THE DESIRED PEPTIDE AS A SINGLE REACTION PRODUCT, AND SEPARATING THE REACTION PRODUCT FROM THE REACTION MASS.
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) | 1958-07-11 | 1959-01-10 | 1959-07-12 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1962-07-11 | 1963-01-10 | 1963-07-12 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1966-07-11 | 1967-01-10 | 1967-07-12 | $7700.00 | Window Closed / Lapsed |