Phytoecdysones ofRhaponticum integrifolium III. Integristerone B

Abstract

From the flower heads ofRhaponticum integrifolium we have isolated a new phytoecdysone — integristerone B. It has been shown that it is 1β, 2β, 3β, 5β, 14α, 20R, 22R, 25-octahydroxy-5β-cholest-7-en-6-one. 
DOI: 10.1007/BF00565240

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