%0 Journal Article
%T Three New Phytoecdysteroids Containing a Furan Ring from the Roots of Achyranthes bidentata Bl.
%A Qiu-Hong Wang
%A Liu Yang
%A Hai Jiang
%A Zhi-Bin Wang
%A Bing-You Yang
%A Hai-Xue Kuang
%J Molecules
%D 2011
%I MDPI AG
%R 10.3390/molecules16075989
%X Three new phytoecdysteroid compounds, named niuxixinsterone A (1), B (2) and C (3) with acetal functions in the side-chain were isolated from Achyranthes bidentata Bl. The structures were established as (20R,22R,24S)-20-O,22-O-(5¡ä-hydroxymethyl)-furfurylidene-2¦Â,3¦Â,14¦Á,25-tetrahydroxy-5¦Â-ergost-7-en-6-one (1), (20R,22R)-20-O,22-O-(5¡ä-hydroxymethyl)-furfurylidene-2¦Â,3¦Â,25-trihydroxy-14¦Â-methyl-18-nor-5¦Â-cholesta-7,12-dien-6-one (2) and (20R,22R,25R)-20-O,22-O-(5¡ä-hydroxymethyl)-furfurylidene-2¦Â, 3¦Â,5¦Â,14¦Á,26-pentahydroxycholest-7-en-6-one (3) by means of spectroscopic evidence.
%K Achyranthes bidentata Bl.
%K phytoecdysteroid
%K niuxixinsterone
%U http://www.mdpi.com/1420-3049/16/7/5989