1972
DOI: 10.1002/prac.19723140303
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Synthese von Analogen des C‐terminalen Physalaemin‐Hexapeptides unter Anwendung von 2,4,5‐Trichlorphenylestern

Abstract: Es wird ein neuer Syntheseweg für Analoge der C‐terminalen Partialsequenz 6–11 von Physalaemin beschrieben. Diese biologisch aktiven Hexapeptide der allgemeinen Struktur X‐Phe‐Tyr‐Gly‐Leu‐MetNH2 (wobei X = Lys, D‐Lys, Orn, Dbu, Dpr, ϵ‐Acp, β‐Ala) werden durch stufenweise Verknüpfung von Boc‐geschützten Aminosäure‐2, 4, 5‐trichlorphenylestern dargestellt.

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Cited by 17 publications
(2 citation statements)
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“…Boc-Arg-OH-HCl (16). Arginine hydrochloride (21.05 g, 0.1 mol) was dissolved in a mixture of dioxane (200 mL) and 0.5 N NaOH (200 mL), the solution was cooled to 0 °C (i-BuO)2CO (24 g, 0.14 mol), and 4 N NaOH (12.5 mL, 0.05 mol) was added with vigorous stirring, which was continued for 2 h. Some insoluble material was removed by filtration, and the filtrate was extracted with Et^O (2 X 100 mL). The aqueous phase was cooled to 0 °C, acidified (pH 5) with 1 N HC1, extracted with CHC13 (3 X 100 mL), neutralized (pH 7.3) with 1 N NaOH, and evaporated.…”
Section: Methodsmentioning
confidence: 99%
“…Boc-Arg-OH-HCl (16). Arginine hydrochloride (21.05 g, 0.1 mol) was dissolved in a mixture of dioxane (200 mL) and 0.5 N NaOH (200 mL), the solution was cooled to 0 °C (i-BuO)2CO (24 g, 0.14 mol), and 4 N NaOH (12.5 mL, 0.05 mol) was added with vigorous stirring, which was continued for 2 h. Some insoluble material was removed by filtration, and the filtrate was extracted with Et^O (2 X 100 mL). The aqueous phase was cooled to 0 °C, acidified (pH 5) with 1 N HC1, extracted with CHC13 (3 X 100 mL), neutralized (pH 7.3) with 1 N NaOH, and evaporated.…”
Section: Methodsmentioning
confidence: 99%
“…So belegen die Verteilung von Substanz P im zentralen und peripheren Nervensystein in Verbindung mit einer Reihe physiologischer Untersuchungen die Funktion des Peptides bei der Ubertragung sensorischer Reize, wahrend sich aus der Wirkung auf die glatte Muskulatur bisher keine endgiiltigen Schlusse auf eine physiologische Regulationsfunktion ableiten lieBen [14, 22, 231. Wir haben Substanz P sowie alle Teilseyuenzen zunachst durch schrittweisen Aufbau unter Verwendung der Trichlorphenylester-und der Misch-Anhydrid-Methode, ausgehend vom C-terminalen Tripeptid H-Gly-Leu-Met-NH, . HCI [24], hergestellt. Der Aufbau zum Ber./Gef.…”
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