Microwave Assisted, Solvent-Free, “Green” Synthesis of Novel Indole Analogs as Potent Antitubercular and Antimicrobial Agents and Their Molecular Docking Studies
作者:A. S. Rathod、S. S. Godipurge、J. S. Biradar
DOI:10.1134/s1070363218060324
日期:2018.6
efficient and environmentally benign synthesis of novel indole analogs bearing thiazolidinone attached to substitutedthiazolylcoumarin scaffolds are synthesized. Conventional and microwave-assisted (MW) approaches are studied. Structures of the products are confirmed by FT-IR, NMR (1H and 13C) and Mass spectra. The in vitro antitubercular and antimicrobialactivities are evaluated. Several screened compounds
An efficient and rapid procedure for the synthesis of 2,4-disubstituted-1,3-thiazoles and selenazoles has been described by the reaction of α-bromoketones with thiourea, phenylthiourea and selenourea at ambient temperature in aqueousmediumunder ultrasonic irradiation. Analytically pure products were formed within 10–60 s in excellent yields. The advantageous features of this non-conventional methodology
Cu (Ι) catalyzed A
<sup>3</sup>
cascade coupling via C‐H functionalization followed by cyclization: Synthesis, in silico, in vitro, and toxicity studies of imidazo[2,1‐
<i>b</i>
]thiazoles
作者:Swati R. Hoolageri、Ravindra R. Kamble、Aravind R. Nesaragi、Lokesh Bheemayya、Vishwa B. Nadoni、Shruti Dixit、Shyamkumar Vootla、Shrinivas D. Joshi
DOI:10.1002/aoc.6801
日期:2022.9
An influential method for the synthesis of imidazo[2,1-b]thiazolesvia copper (I) catalysis was advanced through a multicomponent coupling of pharmacological scaffolds involving 2-aminothiazolyl-coumarin, benzaldehyde, and phenyl acetylene, a concealed variation. The protocol allows the establishment of highly efficient and user-friendly catalytic system for the A3 cascade coupling; also, an environmentally
一种通过铜 (I) 催化合成咪唑并[2,1- b ]噻唑的有影响力的方法是通过涉及 2-氨基噻唑基香豆素、苯甲醛和苯乙炔的药理学支架的多组分偶联,这是一种隐蔽的变化。该协议允许为A 3级联耦合建立高效且用户友好的催化系统;此外,还描绘了一种环境友好、经济且易于获得的 CuSO 4 /抗坏血酸钠。15 种新型咪唑并[2,1- b ]噻唑的序列(7j-x) 被合成并评估了它们的体外抗菌活性、计算机研究和口服毒性研究。合成化合物的体外抗真菌和抗菌筛选显示出良好的活性,并揭示了所有这些以前未知的化合物都显示出显着的活性。其中,化合物7u 表现出最有效的抑制活性。
Synthesis and biological evaluation of some new coumarinyl thiazolopyrimidinones
作者:Naazneen B. Yaragatti、Manohar V. Kulkarni、Manjunath D. Ghate、Satyanarayan S. Hebbar、Ganesh R. Hegde
DOI:10.1080/17415990903569544
日期:2010.4
Two new series of coumarin linked, linear and angularly fused thiazolo-[3,2-a]-pyrimidinones have been synthesized from 3-bromoacetyl coumarins by azole and azine approaches. Regioisomeric 5H and 7H thiazolo-[3,2-a]-pyrimidinones have been clearly distinguished by their IR and UV fluorescence spectral data. All the compounds have been characterized by analytical and spectroscopic methods. Rate and yield enhancements have been achieved using microwave irradiation. The results of in vivo diuretic activity indicate that substituents on coumarin do not enhance the activity. In vitro antimicrobial activities have shown that the compounds are specifically active against Gram-positive but are inactive against Gram-negative bacterial strains. Moderate fungal activity was observed against Candida albicans and Penicillium chrysogenum and all the compounds were found to be inactive against Aspergillus niger.