Synthetic decapeptide having the activity of the luteinizing hormone releasing hormone and method for producing the same

US3974135A · kind A · utility

Inventors

• Karl Folkers · Austin, US
• Hans Sievertsson

Key dates

• Filing date: Jun 8, 1972
• Grant date: Aug 10, 1976
• Expiry date: Jun 8, 1992

Classification

• Technology area (CPC Y): Emerging Cross-Sectional Technologies
• CPC primary: Y10S930/13
• WIPO field: Pharmaceuticals
• WIPO sector: Chemistry

Abstract

A synthetic decapeptide, L-pglutamyl-L-histidyl-L-tryptophanyl-L-seryl-L-tyrosyl-glycyl-L-leucyl-L- arginyl-L-prolyl-glycinamide having the hormonal activity of the luteinizing hormone releasing hormone (LRH) of the hypothalamus gland of mammals is provided by utilizing, as key starting materials, the amino acids, pyroglutamic acid, histidine, tryptophan, serine, tyrosine, glycine, leucine, arginine, proline. Synthesis of the decapeptide is accomplished by coupling, in appropriate protected forms, all of the remaining amino acids, individually or in combination, to the starting amino acid, or amino acid group or to the terminal amino acid resulting from combinations with one or more other amino acids, bound to a resin or carrier followed by release of the decapeptide from the carrier as the amide or other form which is converted to the amide, L-pglutamyl-L-histidyl-L-tryptophanyl-L-seryl-L-tyrosyl-glycyl-L-leucyl-L- arginyl-L-prolyl-glycinamide.