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[19] Amidinium and phosphonium salts [edit] To avoid epimerization through the O-acylisourea intermediate formed when using a carbodiimide reagent, an amidinium- or phosphonium-reagent can be employed These reagents have two parts: an electrophilic moiety which deoxygenates the carboxylic acid ( blue ) and masked nucleophilic moiety ( red )
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13Sarkar R, Yadav V, Yadav T, Mandal I
Verbesserung von Hautstruktur und Hautton : Klinische und prklinische Daten deuten darauf hin, dass GHK-Cu feine Linien, Falten und Hautrauheit reduzieren kann, indem es die Bildung der Kollagenmatrix und die Hydratation verbessert
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