7-(3,4-Dimethoxyphenyl)-6-methylindeno[5,6-d][1,3]dioxol-5-one 2 has been reported as a neo-lignan isolated from the fruits of Virola sebifera. However, physical and spectroscopic data obtained from two synthetic samples of 2 do not match those quoted in the isolation paper. Data obtained from an isomer, 3-(benzo[1,3]dioxol-5-yl)-5,6-dimethoxy-2-methylinden-1-one 10, are in closer agreement but the
据报道7-(3,4-二
甲氧基苯基)-6-甲基
茚并[5,6-d] [1,3]二氧杂-5-酮2是一种从新黑麦草的果实中分离得到的新
木脂素。然而,从两个合成的样品获得的物理和光谱数据2不匹配在隔离纸引述。从异构体3-(苯并[1,3]二恶
酚-5-基)-5,6-二甲氧基-
2-甲基茚-1-酮10中获得的数据更接近,但13 C NMR光谱显示出许多不一致之处。