Antitumor agents XXXVI: Structural eluci
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Yasuhiro Imakura; Kuo-Hsiung Lee; Donald Sims; Rong-Yang Wu; Iris H. Hall; Hiros
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Article
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1980
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John Wiley and Sons
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English
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The antitumor sesquiterpene lactones microhelenins-A, B, and C, microlenin acetate, and plenolin were isolated from Helenium microcephalum. The structures and stereochemistry of these lactones were determined by physical methods as well as by chemical transformations and correlations. Microlenin ace