| Abstract: | It has been shown by x-ray structural analysis that cyclogalegigenin has the 20S,24R stereochemistry and, consequently, is 20S,24R-epoxycycloartane-3 ,6 ,16,25-tetraol. Cyclosieversigenin is 20R,24S-epoxycycloartane-3,6,16,-25-tetraol.Institute of Applied Physics, Acadmy of Sciences of the Moldavian SSR, Kishinev. Institute of the Chemistry of Plant Substances, Academy of Sciences of the Uzbek SSR, Tashkent. Translated from Khimiya Prirodnykh Soedinenii, No. 4, pp. 541–546, July–August, 1988. |
