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Synthesen auf dem Vitamin-B12-Gebiet. 2. Mitteilung Strukturermittlung des Faktors V1a

✍ Scribed by K. Bernhauer; F. Wagner; P. Zeller


Publisher
John Wiley and Sons
Year
1960
Tongue
German
Weight
321 KB
Volume
43
Category
Article
ISSN
0018-019X

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✦ Synopsis


Abstract

The structure of factor V~1a~ has been elucidated as cobyrinic acid abcdeg‐hexamide. The main proof consists in its conversion into factor B, effected by treating the mixed anhydride from factor V~1a~ and ethyl hydrogen carbonate with racemic and with optically active 1‐amino‐2‐propanol.


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## Abstract The mixed anhydride from factor V~1a~ and ethyl hydrogen carbonate reacts with DL‐2‐amino‐1‐methylethyl sodium hydrogen phosphate to give the phosphoric acid monoester of factor B (containing racemic 1‐amino‐2‐propanol). Compounds of this type are believed to be intermediates in the bio