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Priority claimed from JP55058510Aexternal-prioritypatent/JPS6019908B2/ja
Priority claimed from JP6844480Aexternal-prioritypatent/JPS5938954B2/ja
Application filed by Kanebo Ltd.filedCriticalKanebo Ltd.
Priority claimed from EP82103950Aexternal-prioritypatent/EP0061206B1/de
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Publication of ATE9473T1publicationCriticalpatent/ATE9473T1/de
Threo - 3 -protected amino - 2 - hydroxy-4oxobutanoic acids or esters, their preparation and their use in the preparation of threo - 3 - amino - 2 - hydroxy-butanoylaminoacetic acids