Synthesis and Antibacterial Activity of a Novel Series of Potent DNA Gyrase Inhibitors. Pyrazole Derivatives
摘要:
We have previously found that a pyrazole derivative 1 possesses antibacterial activity and inhibitory activity against DNA gyrase and topoisomerase TV. Here, we synthesized new pyrazole derivatives and found that 5-[(E)-2-(5-chloroindol-3-yl)vinyl]pyrazole 16 possesses potent antibacterial activity and selective inhibitory activity against bacterial topoisomerases. Many of the synthesized pyrazole derivatives were potent against clinically isolated quinolone- or coumarin-resistant Gram-positive strains and had minimal inhibitory concentration values against these strains equivalent to those against susceptible strains.
Synthesis and Pharmacological Evaluation of Novel Pyrazolyl Piperidine Derivatives as Effective Antiplatelet Agents
作者:Jigar Y. Soni、Riyaj S. Tamboli、Rajani Giridhar、Mange Ram Yadav、Sonal Thakore
DOI:10.1002/jhet.2703
日期:2017.3
The synthesis and antiplatelet activity of substituted pyrazolyl piperidinederivatives (3a–n) are described. These compounds were synthesized by an improved ring opening reaction of 2‐arylidene quinuclidinone using hydrazine hydrate under mild conditions. They were characterized and screened for their in vitro antiplatelet profile in human platelet aggregation using adenosine diphosphate as agonist