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Molecules 2012, 17(3), 3324-3332; doi:10.3390/molecules17033324
Article

Phytoecdysteroids from the Roots of Achyranthes bidentata Blume

1,2, 1, 1,2, 3, 3, 4, 1 and 1,*
Received: 23 February 2012 / Revised: 8 March 2012 / Accepted: 12 March 2012 / Published: 14 March 2012
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Abstract

Two new phytoecdysteroids, (25S)-20,22-O-(R-ethylidene)inokosterone (1) and 20,22-O-(R-3-methoxycarbonyl)propylidene-20-hydroxyecdysone (2), together with six known phytoecdysteroids 3–8 were isolated from the roots of Achyranthes bidentata Blume. The new structures were established on the basis of spectroscopic studies and chemical evidences. The absolute configuration at C-25 in the structure of known compound 3 was determined by chemical and spectroscopic means.
Keywords: Achyranthes bidentata; Amaranthaceae; phytoecdysteroids; ecdysteroids Achyranthes bidentata; Amaranthaceae; phytoecdysteroids; ecdysteroids
This is an open access article distributed under the Creative Commons Attribution License which permits unrestricted use, distribution, and reproduction in any medium, provided the original work is properly cited.

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Zhang, M.; Zhou, Z.-Y.; Wang, J.; Cao, Y.; Chen, X.-X.; Zhang, W.-M.; Lin, L.-D.; Tan, J.-W. Phytoecdysteroids from the Roots of Achyranthes bidentata Blume. Molecules 2012, 17, 3324-3332.

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