Antifungal activity, SAR and physicochemical correlation of some thiazole-1,3,5-triazine derivatives

Pharmacological evaluation of hybrid thiazolidin-4-one-1,3,5-triazines for NF-κB, biofilm and CFTR activity

A series of hybrid thiazolidin-4-one-1,3,5-triazines was evaluated for NF-κB, biofilm and CFTR activity.

Privileged s-triazines: structure and pharmacological applications

This review summarizes recent reports on s-triazine and its respective analogs from the medicinal chemistry angle. Due to its high reactivity and binding characteristic towards various enzymes, s-triazine has attracted attention. This is combined with facile synthesis and interesting pharmacology. The triazine class demonstrates wide biological applications - including antimicrobial, antituberculosis, anticancer, antiviral and antimalarial. In this article the library of s-triazine-based molecular designs has been collated with respective bioactivity. Compounds are further compared with other heterocyclic/nontriazine moieties to correlate the efficiency of privileged s-triazine. We hope this article may assist chemists in their drug design and discovery efforts.

Synthesis and biological evaluation of compounds which contain pyrazole, thiazole and naphthalene ring as antitumor agents

A series of compounds which contain pyrazole, thiazole and naphthalene ring (1a-7a, 1b-7b, 1c-7c, 1d-7d) were firstly synthesized and their anti-proliferative activity, EGFR inhibitory activity, cytotoxicity and inhibition to Hela cell migration were evaluated. Compound 2-(3-(3,4-dimethylphenyl)-5-(naphthalen-2-yl)-4,5-dihydro-1H-pyrazol-1-yl)thiazol-4(5H)-one (7d) displayed the most potent inhibitory activity (IC50=0.86μM for Hela and IC50=0.12μM for EGFR). Structure-activity relationship (SAR) analysis showed that the anti-proliferative activity was affected by A-ring-substituent (-OCH3>-CH3>-H>-Br>-Cl>-F). Docking simulation of compound 7d into EGFR active site showed that naphthalene ring of 7d with LYS721 formed two p-π bonds, which enhanced antitumor activity. Therefore, compound 7d may be developed as a potential antitumor agent.

Utilisation of Home Laundry Effluent (HLE) as a catalyst for expeditious one-pot aqueous phase synthesis of highly functionalised 4-thiazolidinones

Background

The impact of global warming and associated climate changes have built up pressure to focus on the option of green chemistry over traditional one for long term sustainability of the environment. Considering the fact, for the first time, efficient HLE catalysed expeditious one-pot synthesis of highly functionalised 4-thiazolidinones has been developed.

Results

These hybrid molecules were synthesized in good to excellent yields. The ease of work-up of the reactions less time required and mild conditions are notable features of this protocol. It was inferred that halogen containing derivatives were well suited to this condensation-cyclization reaction with varying rates to afford 4-thiazolidine derivatives. In general, the substitution on the aldehyde part was shown as a main determinant for reaction time and the product yield.

Conclusion

For the first time home laundry effluent (HLE) owing to the surfactant like property has been successfully utilised as catalyst for the synthesis of a series of novel 4-thiazolidinone derivatives through one pot, three component condensation-cyclization reaction. The uniqueness of the present protocol lies in the operational simplicity, ability to reduce the demand for organic solvents, reduce the energy and carbon footprint, and meet a wide range of economic needs.

Electronic supplementary material

The online version of this article (doi:10.1186/2193-1801-2-466) contains supplementary material, which is available to authorized users.

Hybrid phenylthiazole and 1,3,5-triazine target cytosolic leucyl-tRNA synthetase for antifungal action as revealed by molecular docking studies

BACKGROUND

Leucyl-tRNA synthetase (LeuRS) is one of the essential enzymes belonging to the family of aminoacyl-tRNA synthetases (aaRSs), which executes the translation of genetic code by catalyzing the specific attachment of amino acids to their cognate tRNAs. This process is very crucial for survival of micro-organism and thus the inhibition of LeuRS offered a novel and lucrative target for developing new antimicrobials.

FINDINGS

Docking studies using hybrid phenylthiazole-1,3,5-triazine derivatives revealed that these molecules acted as probable inhibitors of candida albicans cytosolic leucyl-tRNA synthetase.

CONCLUSION

The conjugates of phenylthiazole and 1,3,5-triazine can act as lead molecules towards the development of potential leucyl-tRNA synthetase inhibitors on the basis of molecular docking runs, which contribute to the possible mechanism of antifungal activity of these analogues.