Characterization of the Fluorescence Properties of 4-Dialkylaminochalcones and Investigation of the Cytotoxic Mechanism of Chalcones
作者:Bo Zhou、Peixin Jiang、Junxuan Lu、Chengguo Xing
DOI:10.1002/ardp.201500434
日期:2016.7
structure–activity relationship in their cellular cytotoxicity, leading to the identification of structurally similar cytotoxic and non‐cytotoxic fluorescent chalcones as chemical probes. Confocal microscopy results revealed the co‐localization of the cytotoxic probe C8 and tubulin in cells, supporting tubulin as the direct cellular target responsible for the cytotoxicity of chalcones.
Three types of 4′-methoxychalcone derivatives Cha-1 ∼ Cha-9 with different electron-withdrawing or electron-donating substituents at different positions were synthesized and studied. When the A ring has a hydroxyl group at the 2-position, the strong electron-donating groups at the 4-position of the B ring was more conducive to the near-infrared and aggregation-enhanced emission (AEE) features of the
合成并研究了在不同位置具有不同吸电子或给电子取代基的3种4'-甲氧基查耳酮衍生物Cha-1~Cha-9。当 A 环 2 位有羟基时,B 环 4 位的强给电子基团更有利于化合物的近红外和聚集增强发射 (AEE) 特性。吸电子基团。单晶分析证实4'-甲氧基查耳酮衍生物良好的平面性有利于它们的荧光量子产率。此外,通过调节取代基可以得到具有不同荧光特性的查尔酮荧光团。在 A 环的 2 位。此外,选择 Cha-9 作为 AEE 发光原来定位 HeLa 细胞中的溶酶体。这些结果为聚集诱导发射(AIE)化合物的4'-甲氧基查耳酮衍生物的设计和应用提供了基础知识。
Synthesis and antiinflammatory activity of some new 1,3,5-trisubstituted pyrazolines bearing benzene sulfonamide
Nineteen new 2-pyrazoline bearing benzenesulfonamide derivatives were synthesized by condensing chalcones with 4-hydrazinonbenzenesulfonamide hydrochloride. Their chemical structures were proved by means of IR, H-1 NMR, C-13 NMR, mass spectroscopic and elemental analyses data. These compounds were tested at dose of 20 mg/kg for their anti-inflammatory activity in carrageenan-induced rat paw edema model and volume of paw edema was measured at 0, 3 and 5 h. Two compounds 3k and 3l were found to be more active than celecoxib throughout the study (at 3 and 5 h). While two other compounds 3m and 3n showed more potent activity than celecoxib at 5 h. They are devoid of ulcerogenic potential when administered orally at a dose of 60 mg/kg. Compounds (3k-m) showed COX-1 and COX-2 inhibitory activity at 0.05 mu M. (C) 2008 Elsevier Ltd. All rights reserved.