25 シダ植物から得られた昆虫変態活性物質

概要

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The first isolations of ecdysterone, inokosterone, and ponaster-ones from plants have led us to perform a wide screening of ecdysterols in vegetable sources by means of the Sarcophaga assay. As a result, it has been found that active substances are widely distributed in the plant kingdom and, in particular, frequently contained in ferns. Detailed survey of the ferns whose crude extracts exhibit moulting hormone activity has resulted in the isolations of new phytoecdysones, pterosterone, lemmasterone, shidasterone, and ponasteroside A, as well as the known ecdysterols, ecdysone, ponasterone A, and ecdysterone. On the basis of the chemical and physico-chemical evidence, pteroster-one, lemmasterone, shidasterone, and ponasteroside A have been concluded to have structures IV, V, VI, and VII, respectively.
天然有機化合物討論会の論文
1968-09-20