Synthesis and Sar Study of Diarylpentanoid Analogues as New Anti-Inflammatory Agents
作者:Sze Leong、Siti Faudzi、Faridah Abas、Mohd Aluwi、Kamal Rullah、Lam Wai、Mohd Bahari、Syahida Ahmad、Chau Tham、Khozirah Shaari、Nordin Lajis
DOI:10.3390/molecules191016058
日期:——
A series of ninety-seven diarylpentanoid derivatives were synthesized and evaluated for their anti-inflammatory activity through NO suppression assay using interferone gamma (IFN-γ)/lipopolysaccharide (LPS)-stimulated RAW264.7 macrophages. Twelve compounds (9, 25, 28, 43, 63, 64, 81, 83, 84, 86, 88 and 97) exhibited greater or similar NO inhibitory activity in comparison with curcumin (14.7 ± 0.2 µM), notably compounds 88 and 97, which demonstrated the most significant NO suppression activity with IC50 values of 4.9 ± 0.3 µM and 9.6 ± 0.5 µM, respectively. A structure–activity relationship (SAR) study revealed that the presence of a hydroxyl group in both aromatic rings is critical for bioactivity of these molecules. With the exception of the polyphenolic derivatives, low electron density in ring-A and high electron density in ring-B are important for enhancing NO inhibition. Meanwhile, pharmacophore mapping showed that hydroxyl substituents at both meta- and para-positions of ring-B could be the marker for highly active diarylpentanoid derivatives.
合成了97系列二苯基戊烷类化合物,并通过使用γ干扰素(IFN-γ)/脂多糖(LPS)刺激的RAW264.7巨噬细胞进行NO抑制试验评估其抗炎活性。12个化合物(9, 25, 28, 43, 63, 64, 81, 83, 84, 86, 88和97)与姜黄素(14.7 ± 0.2 µM)相比显示出更大或相似的NO抑制活性,特别是化合物88和97,它们表现出最显著的NO抑制活性,IC50值分别为4.9 ± 0.3 µM和9.6 ± 0.5 µM。结构-活性关系(SAR)研究表明,两个芳香环上羟基的存在对这些分子的生物活性至关重要。除了多酚类衍生物外,A环上低电子密度和B环上高电子密度对提高NO抑制作用很重要。同时,药效团映射表明,B环上间位和对位上的羟基取代可能是高活性二苯基戊烷类化合物的标记。