method for the preparation of a pharmaceutical preparation, gastrine force on the basis of a heptapeptide and methods for preparing such a heptapeptide.

摘要

Heptapeptides of the general formula HOOC-(CH2)3-CO-Ala-Tyr-Gly-Trp-X-Asp-Phe-NH2 in which X represents leucine or methionine, and process for preparing them by reacting tert.butyl-protected heptapeptides with glutaric acid anhydride and subsequently splitting off the protective groups with the aid of trifluoroacetic acid.