Synthesis of benzamide derivatives of anacardic acid and their cytotoxic activity
作者:Venkateshappa Chandregowda、Anil Kush、Goukanapalli Chandrasekara Reddy
DOI:10.1016/j.ejmech.2009.01.033
日期:2009.6
Several benzamide derivatives were synthesized from anacardic acid (1a) which was the product of hydrogenation of the naturally occurring anacardic acid mixture (1a–d), a major constituent of cashew nut shell liquid. Anacardic acid (1a) was first alkylated followed by hydrolysis of the ester to obtain synthones namely, 2-ethoxy-6-pentadecylbenzoic acid (5) and 2-isopropoxy-6-pentadecylbenzoic acid
从腰果酸(1a)合成了几种苯甲酰胺衍生物,其是腰果壳液的主要成分,天然的腰果酸混合物(1a - d)的氢化产物。首先使去甲酸(1a)烷基化,然后将酯水解以获得合成酮,即2-乙氧基-6-十五烷基苯甲酸(5)和2-异丙氧基-6-十五烷基苯甲酸(6)。然后将这些水杨酸衍生物与各种苯胺偶联,以获得新颖的苯甲酰胺化合物(7 – 39)。测试了这些合成化合物对野生型HeLa细胞系(具有相对较高的p300表达)和HCT-15(p300阴性)的细胞毒作用。在所有化合物中,2-异丙氧基-6-十五烷基-N-吡啶-4-基苯甲酰胺(27),2-乙氧基-N-(3-硝基苯基)-6-十五烷基苯甲酰胺(22)和2-乙氧基-6-十五烷基发现-N-吡啶-4-基苯甲酰胺(10)在HeLa细胞系中的IC 50值分别为11.02μM,13.55μM,15.29μM时更有效。它们的活性与藤黄醇相当,后者是一种细胞可渗透的组蛋白乙酰转