1,3-Dicarbonyl compounds have gained significant importance since they are abundantly available in the natural products and possess myriad biological activities. The new symmetrical 1,3-diketones bearing L-proline, 2-methyl-5-iodobenzoic acid, piperidine-3-carboxylic acid and naphthalene-1-acetic acid moieties were synthesized by coupling reaction of appropriate ketone with N-acyl triazole in the presence of MgBr2·Et2O and DIPEA. The chemical structure of the compounds were confirmed from
the spectral data such as 1H, 13C NMR, FT-IR and HRMS. Molecular docking studies were carried out for all the compounds with tumor associated protein tyrosine kinase-6 (PTK6) and inflammatory protein cyclooxygenase-2 (COX2). The in vitro evaluation was carried out using breast cancer cell lines (MTT assay) and HRBC stabilization assays. During in silico studies, the ki values obtained against PTK6 and COX2 for (5a-d) compounds were in the range (-7.5 to -10.6) and (-7.6 to -9.8) kcal/mol, respectively. The compound 5d was selected for MTT assay, since it exhibited the highest binding affinity (-10.6 kcal/mol) against PTK6 and gave IC50 - 2.4 μg/mL against breast cancer cell
lines. The HRBC stabilization of all the compounds (5a-5d) were in the range (59.28-93.4) %, with highest stabilization value by 5d, which also displayed higher binding affinity with -7.6 kcal/mol towards COX2. Thus, the synthesized symmetrical 1,3-diketones with suitable functionality can be both anticancer and anti-inflammatory agents.
1,3-二酮化合物因其在天然产物中丰富存在并具有多种生物活性而变得非常重要。新的对称1,3-二酮化合物,带有L-脯氨酸、2-甲基-5-碘苯甲酸、哌啶-3-羧酸和萘-1-乙酸基团,通过适当酮与N-酰基三唑在MgBr2·Et2O和DIPEA存在下的偶联反应合成。这些化合物的化学结构通过1H、13C NMR、FT-IR和HRMS等光谱数据得到确认。对所有化合物与肿瘤相关蛋白酪氨酸激酶-6(PTK6)和炎症蛋白环氧合酶-2(COX2)进行了分子对接研究。通过体外评估使用乳腺癌细胞系(MTT测定)和HRBC稳定性测定。在计算机辅助研究中,(5a-d)化合物对PTK6和COX2获得的ki值分别在(-7.5至-10.6)和(-7.6至-9.8) kcal/mol范围内。化合物5d被选中进行MTT测定,因为它对PTK6表现出最高的结合亲和力(-10.6 kcal/mol),并且对乳腺癌细胞系的IC50为2.4 μg/mL。所有化合物(5a-5d)的HRBC稳定性在(59.28-93.4)%范围内,其中5d的稳定值最高,同时对COX2表现出更高的结合亲和力(-7.6 kcal/mol)。因此,具有适当功能的合成对称1,3-二酮化合物可以成为抗癌和抗炎药物。