Twenty-one chalcones were prepared via aldol condensation and subsequent reduction of these compound led to the corresponding dihydrochalcone and 1,3-diphenylpropane derivatives. The synthetic products were examined for their effects on NO inhibition in LPS-activated mouse peritoneal macrophages. Among the tested compounds, a 1,3-diarylpropane analog, 2-(3-(3,4-dimethoxyphenyl)propyl)-5-methoxyphenol
通过醛醇缩合制备二十一个
查耳酮,随后将这些化合物还原,得到相应的
二氢查耳酮和1,3-二苯基
丙烷衍
生物。检查了合成产物对LPS活化的小鼠腹膜巨噬细胞中NO抑制的影响。在测试的化合物中,1,3-二芳基
丙烷类似物2-(3-(3,4-二
甲氧基苯基)丙基)-5-
甲氧基苯酚(3p)对NO的产生表现出最显着的抑制作用。为了研究作用机理,通过免疫印迹研究了3p对iNOS和COX-2蛋白表达的影响。结果得出结论,3p能够通过ERK,p38和JNK减弱NF-κB信号传导而抑制LPS诱导的RAW264.7细胞中的iNOS表达。