PEPTIDE SYNTHESIS METHOD FOR SUPPRESSING DEFECT CAUSED BY DIKETOPIPERAZINE FORMATION
Solid-phase synthesis of a peptide has a problem that a desired elongation reaction is prevented from proceeding by diketopiperazine and a 6-membered diamine skeleton compound formed when a protective group at the N-terminal is removed. The present inventors have found that when in production of a p...
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Main Authors | , , , |
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Format | Patent |
Language | English French German |
Published |
13.09.2023
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Abstract | Solid-phase synthesis of a peptide has a problem that a desired elongation reaction is prevented from proceeding by diketopiperazine and a 6-membered diamine skeleton compound formed when a protective group at the N-terminal is removed. The present inventors have found that when in production of a peptide by a solid-phase method, a peptide in which an amino group at the N-terminal is protected with a protective group having an Fmoc skeleton is treated in a specific solvent with a base having a pKa of 23 or more in acetonitrile as a conjugate acid, and a peptide chain is then elongated, it is possible to solve the problem described above. |
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AbstractList | Solid-phase synthesis of a peptide has a problem that a desired elongation reaction is prevented from proceeding by diketopiperazine and a 6-membered diamine skeleton compound formed when a protective group at the N-terminal is removed. The present inventors have found that when in production of a peptide by a solid-phase method, a peptide in which an amino group at the N-terminal is protected with a protective group having an Fmoc skeleton is treated in a specific solvent with a base having a pKa of 23 or more in acetonitrile as a conjugate acid, and a peptide chain is then elongated, it is possible to solve the problem described above. |
Author | TAMIYA, Minoru KAGE, Mirai NOMURA, Kenichi KANAZAWA, Junichiro |
Author_xml | – fullname: NOMURA, Kenichi – fullname: TAMIYA, Minoru – fullname: KANAZAWA, Junichiro – fullname: KAGE, Mirai |
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DocumentTitleAlternate | PEPTIDSYNTHESEVERFAHREN ZUR UNTERDRÜCKUNG VON DURCH DIKETOPIPERAZINBILDUNG VERURSACHTEN DEFEKTEN PROCÉDÉ DE SYNTHÈSE DE PEPTIDE POUR SUPPRIMER UN DÉFAUT PROVOQUÉ PAR LA FORMATION DE DICÉTOPIPÉRAZINE |
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RelatedCompanies | CHUGAI SEIYAKU KABUSHIKI KAISHA |
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Snippet | Solid-phase synthesis of a peptide has a problem that a desired elongation reaction is prevented from proceeding by diketopiperazine and a 6-membered diamine... |
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SubjectTerms | CHEMISTRY COMBINATORIAL CHEMISTRY LIBRARIES, e.g. CHEMICAL LIBRARIES, IN SILICOLIBRARIES METALLURGY ORGANIC CHEMISTRY PEPTIDES |
Title | PEPTIDE SYNTHESIS METHOD FOR SUPPRESSING DEFECT CAUSED BY DIKETOPIPERAZINE FORMATION |
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