A novel steroidal glycoside was isolated from the fruit of a tropical
tree, Elaeodendron buchananii, as an antifeedant substance for Spodopt
era exempta. The structure of the compound was determined to be a glyc
oside of 2 alpha,3 beta-14-trihydroxy-16 alpha-acetoxy-14 beta-carda-4
,20 (22)-dienolide-7 beta,8 beta-epoxide.