| Abstract: | The spatial structure of the sesquiterpene humulane ester juniferdin, isolated fromFerula juniperina, has been established by the x-ray structural method. An analysis is given of the 11-membered humulane ring in comparison with the conformation observed in fexerol and juniferol. Institute of Chemistry of Plant Substances, Academy of Sciences of the Uzbek SSR, Tashkent. Institute of Crystallography, Academy of Sciences of the USSR, Moscow. Translated from Khimiya Prirodnykh Soedinii, No. 4, pp. 494–499, July–August, 1991. |
