Three New 7.3′,8.5′-Connected Bicyclo[3.2.1]octanoids and Other Neolignans from Leaves of Nectandra amazonum NEES. (Lauraceae)

被引:21
|
作者
Coy Barrera, Ericsson David [1 ]
Cuca Suarez, Luis Enrique [1 ]
机构
[1] Univ Nacl Colombia, Fac Ciencias, Dept Quim, Lab Invest Prod Nat Vegetales, Bogota 14490, Colombia
关键词
Nectandra amazonum; Lauraceae; macrophyllin-type bicyclo[3.2.1]octanoid; neolignan; BRAZILIAN LAURACEAE; CHEMISTRY; LIGNANS; ANTAGONISTS; PAF;
D O I
10.1248/cpb.57.639
中图分类号
R914 [药物化学];
学科分类号
100701 ;
摘要
Three new 7.3',8.5'-connected (macrophyllin-type) bicyclo[3.2.1]octanoid neolignans (nectamazins A-C, 1-3) were isolated from leaves of Nectandra amazonum NEES., along with seven known neolignans (4-10). The structures of 1-3 were characterized by spectroscopic methods (1D, 2D NMR) and the absolute configuration was assigned on the basis of circular dichroism (CD) spectra supported by nuclear Overhauser effect spectroscopy (NOESY) correlations. The new compounds showed inhibition activity against platelet activating factor (PAF)-induced aggregation of rabbit platelets.
引用
收藏
页码:639 / 642
页数:4
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