作者:Gabriel de la Fuente、Matias Reina、Isabel Timon
DOI:10.1016/0031-9422(91)85122-g
日期:1991.1
new chromene amides derived from tyramine together with known chromene amides, coumarins and furoquinolines have been isolated from roots of Amyris texana . The structures of the new amides were determined by spectroscopic data and synthesized starting from tyramine. The equilibrium distribution of the syn and anti isomers of the tertiary amides was solvent-dependent. The 13 C and 1 H NMR (LIS and
摘要 从 Amyris texana 的根中分离出九种源自酪胺的新色烯酰胺以及已知的色烯酰胺、香豆素和呋喃喹啉。新酰胺的结构由光谱数据确定并从酪胺开始合成。叔酰胺的顺式和反式异构体的平衡分布与溶剂有关。13 C 和 1 H NMR(LIS 和 ASIS)数据表明,在 CHCl 3 溶液中,主要异构体的 NMe 基团在某些情况下与羰基氧是顺式的,而在另一些中则是反式的。然而,主要异构体在苯溶液中均具有NMe基团。