【摘要】 １前言黄酮类化合物广泛存在于植物体中，具有广泛的生物活性，其研究发展很快，特别是含氮黄酮类化合物具有抗癌、抗菌、冠状动脉扩张等作用［１］。但是，目前黄酮类药物仍然存在着两个问题，一是黄酮类化合物结构繁多，生物活性极其广泛，但作用强度普遍较弱；二是黄酮...更多还原

【Abstract】 Reported herein is a new method for the synthesis of Flavone like Heterocycle fused Troponoid Compounds by oxidizing Azo coupling products of 3 cinnamoyltropolone with Bromine in the presence of pyridine. Reaction of Azo couping products of 3 cinnamoyltropolone(1a～1d) with excess Bromine to afford 6 substitutedphenylazo 2 phenyl 8 bromine tropone(b)pyran 4,9 dione(2a～2d). Products 2a～2d are four new compounds their structures having been confirmed by elementary analysis and spectroscopic analysis.更多还原