| Abstract: | An x-ray structural investigation of the germacrane ester chimganidin (diffractometer Cu K radiation, 1028 reflections, direct method, R factor 0.114) has been carried out. The stereochemistry of chimganidin has been established; it is 6-hydroxy-8 -vanilloygermacra-l(10),4(5)-diene. The double bonds in the macro cycle have the trans configuration.Institute of the Chemistry of Plant Substances, Academy of Sciences of the Uzbek SSR, Tashkent. Translated from Khimiya Prirodnykh Soedinenii, No. 4, pp. 436–439, July–August, 1986. |
