Method for preparing eptifibatide
US9562071B2 · kind B2 · utility
Assignee
Inventors
Key dates
| Filing date | Jun 16, 2014 |
| Grant date | Feb 7, 2017 |
| Priority date | — |
| Expiry date | Jun 16, 2034 |
Classification
- Technology area (CPC C)Chemistry; Metallurgy
- CPC primaryC07K7/06
- WIPO fieldBiotechnology
- WIPO sectorChemistry
Abstract
Provided is a method for preparing eptifibatide, wherein the method comprises: obtaining an eptifibatide refined peptide solution; and obtaining and freeze-drying an eptifibatide refined peptide concentrate after rotary evaporation of the eptifibatide refined peptide solution, wherein the concentration of the eptifibatide refined peptide concentrate is 15-30 mg/ml and the temperature of rotary evaporation is 251° C.-35° C. The preparation method of the eptifibatide refined peptide solution is as follows: coupling Cys with a resin to obtain a Cys-resin; obtaining a polypeptide having a sequence as represented by SEQ ID NO: 1 by gradually coupling the Cys-resin with Pro, Trp, Asp, Gly, Har and Mpa; and obtaining the eptifibatide refined peptide solution through oxidation, cleavage, purification and transfer to salt.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.