New terpenoid aldehydes from Kigelia pinnata: crystal structure of pinnatal
作者： Krishna C. Joshi , Pahup Singh , Sheela Taneja , Philip J. Cox , R. Allan Howie
DOI: 10.1016/0040-4020(82)80025-2
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摘要: From the root bark of Kigelia pinnata (Bignoniaceae) two aldehydes, norviburtinal(6-formylcyclo-penta[c]pyran) and pinnatal, 11-formyl-2, 3, 3a, 5, 10, 10a, 11, 11a-octahydro-8-hydroxy-3, 11-dimethyl-3, 10a-epoxy-1H--cyclopent[b]anthracene-5, 10-dione, have been isolated. The structures were determined by spectroscopic methods, X-ray crystallographic analysis pinnatal.
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