NOVEL PHYSIOLOGICALLY ACTIVE SUBSTANCE SULPHOSTIN, PROCESS FOR PRODUCING THE SAME, AND USE THEREOF

摘要

A physiologically active substance, sulphostin, having a potent dipeptidylpeptidase IV inhibitory activity and obtained by culturing a microorganism belonging to the genus Streptomyces and capable of producing the above substance to accumulate the same in the culture medium and harvesting the same from the medium.