Author's Organization：Institute of Pharmaceutical Sciences, Hiroshima University, School of Medicine Institute of Pharmaceutical Sciences, Hiroshima University, School of Medicine Institute of Pharmaceutical Sciences, Hiroshima University, School of Medicine
Three oleanene triterpenes have been isolated from the culture broth of Streptomyces strain H 1082-MY 15. Two of them were identified as known soybean sapogenols, soyasapogenols E and B. The third compound, a new triterpene, was shown to be 24-hydroxyolean-12-ene-3, 22-dione by spectroscopic analysis and chemical correlation.
