Patent EP0578998A1 successfully refreshed from Google Patents.
US3867269A
Expired / Lapsed
US
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Process for producing peptides
Assignee: The University of Osaka
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Filing: 1974-03-05
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Granted: 1975-02-18
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Expires: 1994-03-05
Abstract
Abstract In producing a peptide by coupling an amino acid or oligomer thereof with an amino acid or its oligomer bound to a resin to form a peptide on the resin, cleaving the peptide from the resin and thereafter extracting the peptide, a process which is characterized in that said peptide forming reaction is conducted under the irradiation of ultrasonic waves.
Inventors
- 👤 Yasutsugu Shimonishi
- 👤 Satomi Takahashi
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-23 15:53
CPC Classifications
B; B01; B01J; B01J19/00; B01J19/08; B01J19/10; B01J19/0046; C; C07; C07K; C07K1/00; C07K1/04; C07K1/045; B01J2219/00; B01J2219/00274; B01J2219/00277; B01J2219/00479; B01J2219/00484; B01J2219/00486; B01J2219/00583; B01J2219/00596; B01J2219/00718; B01J2219/0072; B01J2219/00725; C40; C40B; C40B40/00; C40B40/04; C40B40/10; C40B60/00; C40B60/14
Claims Analysis
Total Claims: 8
Claim 1
Independent Claim
61 words
IN A PRODUCING A PEPTIDE BY COUPLING AN AMINO ACID OR OLIGOMER THEREOF WITH AN AMINO ACID OR ITS OLIGOMER BOUND TO A RESIN TO FORM A PEPTIDE ON THE RESIN, CLEAVING THE PEPTIDE FROM THE RESIN AND THEREAFTER EXTRACTING THE PEPTIDE, A PROCESS WHICH IS CHARACTERIZED IN THAT SAID PEPTIDE FORMING REACTION IS CONDUCTED UNDER THE IRRADIATION OF ULTRASONIC WAVES.
Claim 2
Dependent Claim
61 words
IN A PRODUCING A PEPTIDE BY COUPLING AN AMINO ACID OR OLIGOMER THEREOF WITH AN AMINO ACID OR ITS OLIGOMER BOUND TO A RESIN TO FORM A PEPTIDE ON THE RESIN, CLEAVING THE PEPTIDE FROM THE RESIN AND THEREAFTER EXTRACTING THE PEPTIDE, A PROCESS WHICH IS CHARACTERIZED IN THAT SAID PEPTIDE FORMING REACTION IS CONDUCTED UNDER THE IRRADIATION OF ULTRASONIC WAVES.
Claim 3
Dependent Claim
25 words
The process for producing a peptide according to claim 1, in which said ultrasonic waves are those having frequencies of about 18 to 22 kc/sec.
Claim 4
Dependent Claim
23 words
The process for producing a peptide according to claim 2, in which said ultrasonic waves are those having frequencies of about 20 kc/sec.
Claim 5
Dependent Claim
28 words
The process for producing a peptide according to claim 1, in which said peptide forming reaction and extraction of peptide are conducted under the irradiation of ultrasonic waves.
Claim 6
Dependent Claim
25 words
The process for producing a peptide according to claim 4, in which said ultrasonic waves are those having frequencies of about 18 to 22 kc/sec.
Claim 7
Dependent Claim
39 words
The process for producing a peptide according to claim 1, in which said peptide forming reaction and at least one of the pretreatment and aftertreatment steps for the peptide forming reaction are conducted under the irradiation of ultrasonic waves.
Claim 8
Dependent Claim
9 words
Peptide obtained by the method claimed in claim 1.
References Cited (Backward Citations)
US3652434A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1978-02-17 | 1978-08-19 | 1979-02-18 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1982-02-17 | 1982-08-19 | 1983-02-18 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1986-02-17 | 1986-08-19 | 1987-02-18 | $7700.00 | Window Closed / Lapsed |