已经合成了一系列新颖的氟取代的查耳酮衍生物。所有合成的化合物均通过1 H核磁共振(NMR),13 C NMR和元素分析进行表征。使用MTT方法评估了它们对五种癌细胞系,即A549,A498,HeLa,A375和HepG2的抗增殖活性。大多数化合物显示出中等至高活性,IC 50值为0.029–0.729μM。在所有合成的化合物中,有10和19个对癌细胞表现出最有效的抗增殖活性,其中10个被认为是最有前途的化合物。
A series of 2,4,6‐trihydroxychalcone derivatives were synthesized and identified as reversible and competitive protein tyrosine phosphatase (PTP) 1B inhibitors with IC50 values in the micromolar range. Compound 4a had the greatest in vitro inhibition activity against PTP1B (IC50 = 0.27 ± 0.01 μm) and the best selectivity (6.9‐fold) for PTP1B relative to T‐cell protein tyrosine phosphatases. The compounds identified herein provide a foundation on which to design specific inhibitors of PTP1B and other PTPs.