A new triterpenoid from Amoora dasyclada

NWIPB OpenIR

	A new triterpenoid from Amoora dasyclada
	Wang, H ; Zhang, XF ; Yang, SM ; Luo, XD
	2004-10-01
发表期刊	ACTA BOTANICA SINICA ; Wang Huan,Zhang Xiaofeng,Yang Shumin,Luo Xiaodong.A New Triterpenoid from Amoora dasyclada.Acta Botanica Sinica,2004,46(10):1256-1260
摘要	Five compounds were isolated from the EtOH extraction of the stem of Amoora dasyclada (How et T. Chen) C. Y. Wu (Meliaceae). On the basis of spectroscopic methods, their structures were elucidated as 24, 25-epoxy-tirucall-7-ene-3, 23-dione (1), 24, 25, 26, 27-tetranortirucall-7-ene-3-oxo-23(21)-lactone (2), taraxerone (3), taraxerol (4) and b-sitosterol (5). Among them, compound 1 was a new triterpenoid, compounds 3-5 were firstly obtained from this plant; compound 2, an tetranortriterpenoid, was firstly isolated from natural sources, and its NMR data were assigned for the first time. Moreover, the D7-bond and the Me-14 in compound 2 were never changed, which has never been found in other tetranortriterpenoids. And the biosynthetic pathway of tetranortriterpenoid was further discussed.; Five compounds were isolated from the EtOH extraction of the stem of Amoora dasyclada (How et T. Chen) C. Y. Wu (Meliaceae). On the basis of spectroscopic methods, their structures were elucidated as 24, 25-epoxy-tirucall-7-ene-3, 23-dione (1), 24, 25, 26, 27-tetranortirucall-7-ene-3-oxo-23 (21)-lactone (2), taraxerone (3), taraxerol (4) and P-sitosterol (5). Among them, compound I was a new triterpenoid, compounds 3-5 were firstly obtained from this plant; compound 2, an tetra nortriterpenoid, was firstly isolated from natural sources, and its NMR data were assigned for the first time. Moreover, the Delta(7)-bond and the Me-14 in compound 2 were never changed, which has never been found in other tetranortriterpenoids. And the biosynthetic pathway of tetra nortriterpenoid was further discussed.
文献类型	期刊论文
条目标识符	http://210.75.249.4/handle/363003/29681
专题	中国科学院西北高原生物研究所
推荐引用方式 GB/T 7714	Wang, H,Zhang, XF,Yang, SM,et al. A new triterpenoid from Amoora dasyclada[J]. ACTA BOTANICA SINICA, Wang Huan,Zhang Xiaofeng,Yang Shumin,Luo Xiaodong.A New Triterpenoid from Amoora dasyclada.Acta Botanica Sinica,2004,46(10):1256-1260,2004.
APA	Wang, H,Zhang, XF,Yang, SM,&Luo, XD.(2004).A new triterpenoid from Amoora dasyclada.ACTA BOTANICA SINICA.
MLA	Wang, H,et al."A new triterpenoid from Amoora dasyclada".ACTA BOTANICA SINICA (2004).