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dl‐Seryl‐dl‐Alanyl‐Glycyl‐Glycyl‐dl‐Alanyl‐Glycin und dl‐Alanyl‐Glycyl‐Glycyl‐dl‐Seryl‐dl‐Alanyl‐Glycin

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Abstract1) Aus Carbobenzoxy‐Dl‐seryl‐Dl‐alanyl‐glycin‐azid und Glycyl‐Dl‐alanyl‐glycin‐benzylester wurden die Carbobenzoxy‐hexapeptid‐benzylester synthetisiert und durch fraktionierte Kristallisation nach katalytischer Hydrierung die vier Racemate A, B, C und D von Dl‐alanyl‐glycyl‐glycyl‐Dl‐alanyl‐glycin erhalten.—2) Zwei Racemate A und B des Hexapeptids Dl‐alanyl‐glycyl‐glycyl‐Dl‐seryl‐Dl‐alanyl‐glycin wurden durch Kupplung von Carbobenzoxy‐Dl‐alanyl‐glycyl‐glycin‐azid mit dem Racemat A von Dl‐Seryl‐Dl‐alanyl‐glycin‐benzylester durch fraktionierte Kristallisation der Carbobenzoxy‐benzylester und katalytische Hydrierung dargestellt. — 3) Die Röntgenogramme aller dieser Peptide sind erwartungsgemäß2) deutlich von dem des Fibroins und der kristallinen Bereiche verschieden.
Title: dl‐Seryl‐dl‐Alanyl‐Glycyl‐Glycyl‐dl‐Alanyl‐Glycin und dl‐Alanyl‐Glycyl‐Glycyl‐dl‐Seryl‐dl‐Alanyl‐Glycin
Description:
Abstract1) Aus Carbobenzoxy‐Dl‐seryl‐Dl‐alanyl‐glycin‐azid und Glycyl‐Dl‐alanyl‐glycin‐benzylester wurden die Carbobenzoxy‐hexapeptid‐benzylester synthetisiert und durch fraktionierte Kristallisation nach katalytischer Hydrierung die vier Racemate A, B, C und D von Dl‐alanyl‐glycyl‐glycyl‐Dl‐alanyl‐glycin erhalten.
—2) Zwei Racemate A und B des Hexapeptids Dl‐alanyl‐glycyl‐glycyl‐Dl‐seryl‐Dl‐alanyl‐glycin wurden durch Kupplung von Carbobenzoxy‐Dl‐alanyl‐glycyl‐glycin‐azid mit dem Racemat A von Dl‐Seryl‐Dl‐alanyl‐glycin‐benzylester durch fraktionierte Kristallisation der Carbobenzoxy‐benzylester und katalytische Hydrierung dargestellt.
— 3) Die Röntgenogramme aller dieser Peptide sind erwartungsgemäß2) deutlich von dem des Fibroins und der kristallinen Bereiche verschieden.

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