explore new antifungal agrochemicals, we reported the synthesis of two series 5a-f, 6 and 7a-f, 8 of benzothiazole-appended bis-triazole derivative-based structural isomers using a molecular hybridization approach. The synthesized compounds were tested for fungal growth inhibition against the plant pathogen Rhizoctonia solani. All the synthesized compounds showed excellent antifungalactivity in their
Design, synthesis and antimicrobial activity of novel benzothiazole analogs
作者:Manavendra K. Singh、Ragini Tilak、Gopal Nath、Satish K. Awasthi、Alka Agarwal
DOI:10.1016/j.ejmech.2013.02.027
日期:2013.5
In an attempt to design and synthesize a new class of antimicrobials, dialkyne substituted 2-aminobenzothiazole was reacted with various substituted aryl azides to generate a small library of 20 compounds (3a-t) by click chemistry. Structures of the newly synthesized compounds were established on the basis of spectral data. These compounds were screened for their antibacterial activity against Gram+ bacteria (Staphylococcus aureus and Enterococcus faecalis), Gram- bacteria (Salmonella typhi, Escherichia coli, Klebsiella pneumoniae, Pseudomonas aeruginosa, Shigella boydii) and antifungal activity against Candida tropicalis, Candida albicans, Candida krusei, Cryptococcus neoformans) as well as molds (Aspergillus niger, Aspergillus fumigatus). The compound 3e showed maximum potency against all Gram+/gram- bacterial strains with MIC value 3.12 mu g/ml, which is two fold more active as compared to standard drug ciprofloxacin (MIC 6.25 mu g/ml). However, all compounds were found ineffective against S. boydii (clinical isolate). Further, only one compound 3n was found to be the most active against all fungal strains with MIC value in the range of 1.56 mu g/ml-12.5 mu g/ml while the remaining compounds showed moderate to weak antifungal activity. (c) 2013 Elsevier Masson SAS. All rights reserved.
Copper(<scp>ii</scp>) and zinc(<scp>ii</scp>) complexes of mono- and bis-1,2,3-triazole-substituted heterocyclic ligands
作者:Natalija Pantalon Juraj、Marko Krklec、Tiana Novosel、Berislav Perić、Robert Vianello、Silvana Raić-Malić、Srećko I. Kirin
DOI:10.1039/d0dt01244k
日期:——
Chelating 1,4-disubstituted mono- (8a–8d) and bis-1,2,3-triazole-based (9a–11a) ligands were prepared by regioselective copper(I)-catalysed 1,3-dipolar cycloaddition of terminal alkynes with aromatic azides, together with bioconjugate 13a synthesized by amide coupling of L-phenylalanine methyl ester to 11a. Cu(II) and Zn(II) complexes were prepared and single crystal structures were determined for
Ferrocene conjugates linked by 1,2,3‐triazole and their Zn(II) and Cu(II) complexes: Synthesis, characterization and biological activity
作者:Silvio Jakopec、Natalija Pantalon Juraj、Anamaria Brozovic、Dijana Jadreško、Berislav Perić、Srećko I. Kirin、Silvana Raić‐Malić
DOI:10.1002/aoc.6575
日期:2022.4
[Cu(8a)2](CF3SO3)2 (8aCu) and [Cu(8c)2(CH3OH)2](BF4)2 (8cCu). In addition to NMR and UV–Vis spectroscopy, the metal complexes were characterized by cyclic voltammetry. The cytotoxic effect of ferrocene conjugates and their Zn(II) and Cu(II) complexes was explored, and cell cycle analysis was performed. The complex [Cu(8c)2](CF3SO3)2 showed the most prominent and selective cytotoxicity on cervical carcinoma