36 Novel heterocyclic chalcone derivatives were synthesized and tested for their anti‐bacterial activity. Some compounds presented good anti‐microbial activities against Gram‐positive bacteria (including the multidrug‐resistant clinical isolates). This class of compounds presented high potency against Streptococcus mutans, among which the derivatives F2 with an MIC of 2 µg/mL was as active as the standard
<i>p</i>-TsOH Catalysed a Facile One-Pot Synthesis of Some New Substituted [1,2,4]Triazolo[3,4-<i>b</i>][1,3,4] thiadiazepines under Microwave Irradiation in Solvent-Free Conditions
作者:M. Raghavendra、Halehatty S. Bhojya Naik、Tangali R. R Ravikumar Naik、Bailure S. Sherigara
DOI:10.1080/10426500701323408
日期:2007.6.14
A series of triazolothiadiazepines were synthesized by the reaction of 4-substituted-5-aryl-1,2,4-triazoles and chalcones using p-TsOH as catalyst under solvent-free microwave irradiation conditions. Structure of all the prepared compounds were elucidated by elemental, IR, 1H NMR and mass spectral data.
In vitro antifungal evaluation and structure–activity relationships of a new series of chalcone derivatives and synthetic analogues, with inhibitory properties against polymers of the fungal cell wall
作者:Silvia N López、Marı́a V Castelli、Susana A Zacchino、José N Domı́nguez、Gricela Lobo、Jaime Charris-Charris、Juan C.G Cortés、Juan C Ribas、Cristina Devia、Ana M Rodrı́guez、Ricardo D Enriz
DOI:10.1016/s0968-0896(01)00116-x
日期:2001.8
Here we report the synthesis, in vitro antifungal evaluation and SAR study of 41 chalcones and analogues. In addition, all active structures were tested for their capacity of inhibiting Saccharomyces cerevisiae beta (1,3)-glucan synthase and chitin synthase, enzymes that catalyze the synthesis of the major polymers of the fungal cell wall. (C) 2001 Elsevier Science Ltd. All rights reserved.
Synthesis and characterization of pyrido[1,2-a]quinoline palladacycles
作者:Abdel-Sattar S. Hamad Elgazwy
DOI:10.1007/s00706-008-0932-2
日期:2008.11
Palladacycles of pyrido[1,2-a]quinoline complexes were synthesized via a one pot reaction of quinolines with XyNC (Xy = 2,6-Me 2C6H3) in the presence of Pd(dba)(2) (4:1). These palladacycles were also obtained via reaction of quinolines with Pd(dba)(2) in the presence of PPh (3) (1:2) in acetone to give the intermediate complexes of dinuclear palladaphosphaquinoline complexes. Dinuclear complexes were converted into palladacycles via reaction with XyNC in CH2Cl2. The crystal structure of the dinuclear palladium complex was determined by X-ray diffraction studies.