Khattri, Ram B. et al. published their research in Molecules in 2016 | CAS: 10199-53-8

1-Methyl-5-phenyl-1H-pyrazole-3-carboxylic acid (cas: 10199-53-8) belongs to pyrazole derivatives. Pyrazole has two ring nitrogen atoms in which N1 is pyrrolic and N2 is pyridine-like. The N1 nitrogen is not reactive but is deprotonated in the presence of a base-forming anion. Protonation of pyrazole in strong acid leads to pyrazolium cations, which undergo electrophilic substitution preferentially at C3 rather than C4. The pyrazole anion is not reactive toward nucleophiles but is mostly reactive to electrophiles.Recommanded Product: 1-Methyl-5-phenyl-1H-pyrazole-3-carboxylic acid

An NMR-guided screening method for selective fragment docking and synthesis of a warhead inhibitor was written by Khattri, Ram B.;Morris, Daniel L.;Davis, Caroline M.;Bilinovich, Stephanie M.;Caras, Andrew J.;Panzner, Matthew J.;Debord, Michael A.;Leeper, Thomas C.. And the article was included in Molecules in 2016.Recommanded Product: 1-Methyl-5-phenyl-1H-pyrazole-3-carboxylic acid This article mentions the following:

Selective hits for the glutaredoxin ortholog of Brucella melitensis are determined using STD NMR and verified by trNOE and 15N-HSQC titration The most promising hit, RK207, was docked into the target mol. using a scoring function to compare simulated poses to exptl. data. After elucidating possible poses, the hit was further optimized into the lead compound by extension with an electrophilic acrylamide warhead. We believe that focusing on selectivity in this early stage of drug discovery will limit cross-reactivity that might occur with the human ortholog as the lead compound is optimized. Kinetics studies revealed that lead compound 5 modified with an ester group results in higher reactivity than an acrylamide control; however, after modification this compound shows little selectivity for bacterial protein vs. the human ortholog. In contrast, hydrolysis of compound 5 to the acid form results in a decrease in the activity of the compound Together these results suggest that more optimization is warranted for this simple chem. scaffold, and opens the door for discovery of drugs targeted against glutaredoxin proteins – a heretofore untapped reservoir for antibiotic agents. In the experiment, the researchers used many compounds, for example, 1-Methyl-5-phenyl-1H-pyrazole-3-carboxylic acid (cas: 10199-53-8Recommanded Product: 1-Methyl-5-phenyl-1H-pyrazole-3-carboxylic acid).

1-Methyl-5-phenyl-1H-pyrazole-3-carboxylic acid (cas: 10199-53-8) belongs to pyrazole derivatives. Pyrazole has two ring nitrogen atoms in which N1 is pyrrolic and N2 is pyridine-like. The N1 nitrogen is not reactive but is deprotonated in the presence of a base-forming anion. Protonation of pyrazole in strong acid leads to pyrazolium cations, which undergo electrophilic substitution preferentially at C3 rather than C4. The pyrazole anion is not reactive toward nucleophiles but is mostly reactive to electrophiles.Recommanded Product: 1-Methyl-5-phenyl-1H-pyrazole-3-carboxylic acid

Referemce:
Pyrazole – Wikipedia,
Pyrazoles – an overview | ScienceDirect Topics