Olbon, Fisher, Spivak, McClelland & Maier
Method for producing purine arabinosides
 Purine-arabinosides and a method for making purine-arabinosides are disclosed. The method comprises contacting an arabinose donor and a purine source in the presence of an effective amount of enzyme produced by a bacterium and capable of transarabinosylation from the arabinose donor to the purine source, whereby a 9-(.beta.-D-arabinofuranosyl)-purine is produced. 
Ajinomoto Company Incorporated
C C
C12P C07H
inventional inventional
Hirokazu Takashi Akihiro Koji Takeshi Fumihiro
Morisawa Utagawa Yamazaki Mitsugi Miyoshi Yoshinaga