New Glycosidases Inhibitors, Panosialins D and wD Produced by Streptomyces sp. OH-5186.

Abstract

New panosialin analog, panosialins D and wD have been isolated from the culture broth of Streptomyces sp. OH-5186. Their structures were elucidated as 5-(13-methylpentadecyl)-1,3-benzenediol bis(sodium sulfate) and 5-(13-methylpentadecyl)-1,3-benzenediol 1-(sodium sulfate), respectively. They showed strong inhibitory activity against alpha-mannosidase, alpha-glucosidase, and beta-glucosidase. Panosialins wA-wD mixture also showed weak mitogenic activity but suppressed the mitogen induced activity.