Thirty chalcone derivatives were synthesized via a base catalyzed Claisen Schmidt condensation and evaluated for their anti-methicillin-resistant Staphylococcus aureus (MRSA) activity alone and in combination with norfloxacin. Among these, 5 derivatives namely trans-3-(1H-indol-3-yl)-1-(4′-benzyloxyphenyl)-2-propen-1-one (2), 1-(4″-biphenyl)-3-(3′4′-dihydroxyphenyl)-2-propen-1-one (11), 1-(4″-hydroxy-3
Synthesis and characterization of chalcone-linked bis-cinnamate-based liquid crystals: structure–property relationship
作者:Durgesh J. Dwivedi、Vinay S. Sharma、Suryajit L. Rathod、Hitendra A. Mali、Pranav S. Shrivastav、Rutesh R. Shah
DOI:10.1080/15421406.2022.2142605
日期:——
liquid crystalline properties. In the present study, seven homologous have been synthesized by varying alkoxy sidechains, and the liquid crystalline property was preliminarily investigated by POM, DSC, and XRD study. The lower alkoxy chain displays nematic mesophase, while the higher chain displays smectic C and nematic mesogenic behavior. Also, the structure–property relationship was studied by changing
摘要 设计并合成了基于查尔酮和肉桂酸酯基团的棒状材料,用于研究液晶特性。在本研究中,通过改变烷氧基侧链合成了七种同系物,并通过 POM、DSC 和 XRD 研究初步研究了液晶性质。较低的烷氧基链显示向列中间相,而较高的链显示近晶 C 和向列介晶行为。此外,还通过改变末端烷氧基链研究了结构-性能关系。采用红外光谱、1H NMR、13C NMR等分析方法对化合物的分子结构进行了确证。
作者:Julie A. Pollock、Naina Sharma、Sirish K. Ippagunta、Vanessa Redecke、Hans Häcker、John A. Katzenellenbogen
DOI:10.1002/cmdc.201800417
日期:2018.10.22
identified a class of triarylpyrazole compounds that inhibit TLR signaling by modulation of the protein–protein interactions essential to the pathway. We have now systematically examined the structural features essential for inhibition of this pathway, revealing characteristics of compounds that inhibited all TLRs tested (pan‐TLR signalinginhibitors) as well as compounds that selectively inhibited certain