7,8beta-dihydroponasterone A, a new phytoecdysteroid from the needles of the Japanese Yew, Taxus cuspidata

Journal of the Brazilian Chemical Society

Li, Xing¹  Tohoku University, Aoba-ku, Japan¹  Dong, Mei¹  Yamada, Teiko¹  Huo, Chang-Hong¹  Kiyota, Hiromasa¹  Shi, Qing-Wen¹  Hebei Medical University, Shijiazhuang, P. R. China¹  Su, Xiao-Hui¹ 

关键词: Taxus cuspidata;    yew;    phytoecdysteroid;    ponasterone A;    7;    8b-dihydroponasterone A;   

DOI  :  10.1590/S0103-50532007000500032

学科分类：化学（综合）

来源: SciELO

【 摘 要 】

A new plant ecdysteroid 7,8b-dihydroponasterone A, together with ponasterone A, were isolated from the methanol extract of the needles of the Japanese yew, Taxus cuspidata. Their structures were elucidated on the basis of spectroscopic analysis including 1H NMR, 13C NMR, 1H-1H COSY, NOESY, HMQC and HMBC and confirmed by high-resolution FABMS data.

【 授权许可】

Unknown