Design, synthesis and antibacterial activity of chalcones against MSSA and MRSA planktonic cells and biofilms
作者:Mayara A.R. Garcia、Reinaldo S. Theodoro、Janaina C.O. Sardi、Mariana B. Santos、Gabriela M. Ayusso、Fernando R. Pavan、Alan R. Costa、Lucas M. Santa Cruz、Pedro L. Rosalen、Luis O. Regasini
DOI:10.1016/j.bioorg.2021.105279
日期:2021.11
respectively. In addition, the antibacterialactivity spectrum of 5f indicated action against planktonic cells of Enterococcus faecalis (MIC = 7.8 μg mL−1), Acinetobacter baumannii (MIC = 15.6 μg mL−1) and Mycobacterium tuberculosis (MIC = 5.7 μg mL−1). Altogether, these results open new avenues for 5f as an anti-Staphylococcus aureus agent, with potential applications as antibacterial drug, adjunct of antibiotics
金黄色葡萄球菌是现代最成功的病原体之一。作为皮肤和粘膜共生体的细菌可以在医疗保健和社区环境中传播并导致严重感染。因此,发现应对耐药菌株起作用的新型抗金黄色葡萄球菌化合物是一项巨大的挑战。在此,我们设计并合成了一系列 17 个查耳酮,在 A 环上被氨基取代,对甲氧西林敏感金黄色葡萄球菌(MSSA) 和耐甲氧西林金黄色葡萄球菌MRSA 浮游细胞进行了评估。根据Topliss的手动方法设计的B环上的取代基提高了抗菌效力。4-bromo-3'-aminochalcone ( 5f) 是最活跃的,表明对 MSSA 和 MRSA 的最小抑制浓度 (MIC) 值分别为 1.9 μg mL -1和 7.8 μg mL -1。的关联5F用万古霉素显示出对MSSA和MRSA的协同效应,与分别为0.4和0.3,部分抑制浓度指数(FICI)值。5f 的亚抑制浓度抑制 MSSA 和 MRSA 对人角质形成细胞的粘附。Chalcone
Chalcone derivative compounds represented by general formula (I) or (II), wherein R₁ and R₂ each represents a halogen atom, a hydroxy group, an amino group, a dimethylamino group, a nitro group, a cyano group, a phenyl group, an acetyl group, an alkyl group containing 1 to 18 carbon atoms or an alkyloxy group containing 1 to 22 carbon atoms, n₁ and n₂ each represents an integer of 0 to 21, and m₁ and m₂ each represents an integer of 0 to 5.
Structure-based design, synthesis and antiproliferative action of new quinazoline-4-one/chalcone hybrids as EGFR inhibitors
作者:Mohamed Hisham、Heba A. Hassan、Hesham A.M. Gomaa、Bahaa G.M. Youssif、Alaa M. Hayallah、Mohamed Abdel-Aziz
DOI:10.1016/j.molstruc.2022.132422
日期:2022.4
A new series of quinazoline-4-one/chalcone hybrids, 7-26, was synthesized in this study as EGFRinhibitors with antiproliferative activity. Target compounds were synthesized and in vitro tested against different cancer cell lines, EGFR, and BRAF enzymes. Three compounds showed the greatest antiproliferative activity and were the most potent EGFRinhibitors. Also, these three compounds improved the level