Synthesis and evaluation of the anticancer activity of bischalcone analogs in human lung carcinoma (A549) cell line
作者:Jie Yang、Wen-Wen Mu、Guo-Yun Liu
DOI:10.1016/j.ejphar.2020.173396
日期:2020.12
because of its wide range of application in pharmaceutical chemistry. This work aims to evaluate the antiproliferation effects and explore the anticancer mechanism of bischalcone analogs on humanlung cancer A549cells. In this study, we synthesized a series of bischalcone analogs via Aldol condensation reaction; MTT method was used to evaluate the antiproliferation effects; the 2′,7′-dichlorofluorescein
Symmetric Bis-chalcones as a New Type of Breast Cancer Resistance Protein Inhibitors with a Mechanism Different from That of Chromones
作者:Evelyn Winter、Patrícia Devantier Neuenfeldt、Louise Domeneghini Chiaradia-Delatorre、Charlotte Gauthier、Rosendo Augusto Yunes、Ricardo José Nunes、Tânia Beatriz Creczynski-Pasa、Attilio Di Pietro
DOI:10.1021/jm401879z
日期:2014.4.10
Potent ABCG2 inhibitors were recently identified as asymmetric chromones with different types of substituents. We here synthesized symmetric bis-chalcones that were differently substituted and screened for their ability to inhibit mitoxantrone efflux from ABCG2-transfected HEK293 cells. Potent bis-chalcone inhibitors were identified, the efficiency depending on both position of the central ketone groups and the number and positions of lateral methoxy substituents. The best derivative, namely, 1p, was selective for ABCG2 over P-glycoprotein and MRP1, appeared not to be transported by ABCG2, and was at least as active on various drug-selected cancer cells overexpressing ABCG2. Compound 1p stimulated the ABCG2 basal ATPase activity by contrast to a chromone lead that inhibited it, suggesting different mechanisms of interaction. Combination of both types of inhibitors produced synergistic effects, leading to complete inhibition at very low
Expeditious Synthesis of Fluorescent Bis(phenylfuryl)benzenes
of alternating benzene and furan rings, para- and meta-bis(5-phenylfur-3-yl)benzenes, were expeditiously synthesized by double Mn(OAc)3-catalyzed oxidative decarbonylation and Paal–Knorr reactions of β-ketoesters, prepared from the conjugate addition of ethyl acetoacetate to para- and meta-bis(chalcones). Stronger fluorescence intensity was observed for meta-bis(phenylfuryl)benzene with ortho-methoxy