Synthesis of vinyl arabinose ester catalyzed by protease from Streptomycessp.

The transesterification of 0.5 M divinyladipate with 0.25 M arabinose in di methylformamide for 7 days was catalyzed by Streptomyces sp. alkaline prote ase to give 5-O-vinyladipoyl-D-arabinofuranose at ca. 50% yield. Only enzym atic transesterification of primary hydroxyl group of arabinofuranose proce eded without esterification of arabinopyranose.