DPPH Scavenging Assay of Novel 1,3-disubstituted-1H-pyrazol-5-ols and their in silico Studies on Some Proteins Involved in Alzheimers Disease Signaling Cascade
Simple, fast and efficient synthesis of β-keto esters from the esters of heteroaryl compounds, its antimicrobial study and cytotoxicity towards various cancer cell lines
摘要:
A series of beta-keto esters were synthesized from heteroaryl esters and ethyl acetate using LiHMDS as base at -50 to -30 degrees C. The increase in yields of cross condensed product were observed and the percentage of self condensed product was reduced drastically by applying the suitable base (LiHMDS), solvent and the minimum amount of ethyl acetate. All these beta-keto esters were characterized using H-1 NMR, C-13 NMR and mass spectral data. A plausible mechanism is also depicted to prove the formation of trans-esterified products. All the synthesized compounds were subjected to test for their cytotoxicity towards various cancer cell lines and also tested for their antimicrobial activity towards various bacterial and fungal strains and some of them were found to have promising activity. (C) 2012 Elsevier Ltd. All rights reserved.
DPPH Scavenging Assay of Novel 1,3-disubstituted-1H-pyrazol-5-ols and their in silico Studies on Some Proteins Involved in Alzheimers Disease Signaling Cascade
A series of new 1,3-disubstituted-1H-pyrazol-5-ols (3) which are the analogues of known radical scavenger ‘edaravone’ are synthesized, characterized and evaluated for DPPH scavenging capacity. The docking studies are carried out for these compounds in the enol form and also in the respective keto form against the proteins and peptides involved in Alzhemier disease signal cascade. Some of them showed good radical scavenging capacity and molecular binding.
Simple, fast and efficient synthesis of β-keto esters from the esters of heteroaryl compounds, its antimicrobial study and cytotoxicity towards various cancer cell lines
A series of beta-keto esters were synthesized from heteroaryl esters and ethyl acetate using LiHMDS as base at -50 to -30 degrees C. The increase in yields of cross condensed product were observed and the percentage of self condensed product was reduced drastically by applying the suitable base (LiHMDS), solvent and the minimum amount of ethyl acetate. All these beta-keto esters were characterized using H-1 NMR, C-13 NMR and mass spectral data. A plausible mechanism is also depicted to prove the formation of trans-esterified products. All the synthesized compounds were subjected to test for their cytotoxicity towards various cancer cell lines and also tested for their antimicrobial activity towards various bacterial and fungal strains and some of them were found to have promising activity. (C) 2012 Elsevier Ltd. All rights reserved.