Zhang, Jian-Wei et al. published their research in European Journal of Medicinal Chemistry in 2022 | CAS: 343262-51-1

2-Bromo-5-(methylsulfonyl)pyridine (cas: 343262-51-1) belongs to pyridine derivatives. The ring atoms in the pyridine molecule are sp2-hybridized. The nitrogen is involved in the π-bonding aromatic system using its unhybridized p orbital. The lone pair is in an sp2 orbital, projecting outward from the ring in the same plane as the σ bonds. Many analogues of pyridine are known where N is replaced by other heteroatoms . Substitution of one C–H in pyridine with a second N gives rise to the diazine heterocycles (C4H4N2), with the names pyridazine, pyrimidine, and pyrazine.Electric Literature of C6H6BrNO2S

Discovery of 9,10-dihydrophenanthrene derivatives as SARS-CoV-2 3CLpro inhibitors for treating COVID-19 was written by Zhang, Jian-Wei;Xiong, Yuan;Wang, Feng;Zhang, Fu-Mao;Yang, Xiaodi;Lin, Guo-Qiang;Tian, Ping;Ge, Guangbo;Gao, Dingding. And the article was included in European Journal of Medicinal Chemistry in 2022.Electric Literature of C6H6BrNO2S This article mentions the following:

The epidemic coronavirus disease 2019 (COVID-19) caused by severe acute respiratory syndrome coronavirus 2 (SARS-CoV-2) has now spread worldwide and efficacious therapeutics are urgently needed. 3-Chymotrypsin-like cysteine protease (3CLpro) is an indispensable protein in viral replication and represents an attractive drug target for fighting COVID-19. Herein, we report the discovery of 9,10-dihydrophenanthrene derivatives as non-peptidomimetic and non-covalent inhibitors of the SARS-CoV-2 3CLpro. The structure-activity relationships of 9,10-dihydrophenanthrenes as SARS-CoV-2 3CLpro inhibitors have carefully been investigated and discussed in this study. Among all tested 9,10-dihydrophenanthrene derivatives, C1 and C2 display the most potent SARS-CoV-2 3CLpro inhibition activity, with IC50 values of 1.55 ± 0.21μM and 1.81 ± 0.17μM, resp. Further enzyme kinetics assays show that these two compounds dose-dependently inhibit SARS-CoV-2 3CLprovia a mixed-inhibition manner. Mol. docking simulations reveal the binding modes of C1 in the dimer interface and substrate-binding pocket of the target. In addition, C1 shows outstanding metabolic stability in the gastrointestinal tract, human plasma, and human liver microsome, suggesting that this agent has the potential to be developed as an orally administered SARS-CoV-2 3CLpro inhibitor. In the experiment, the researchers used many compounds, for example, 2-Bromo-5-(methylsulfonyl)pyridine (cas: 343262-51-1Electric Literature of C6H6BrNO2S).

2-Bromo-5-(methylsulfonyl)pyridine (cas: 343262-51-1) belongs to pyridine derivatives. The ring atoms in the pyridine molecule are sp2-hybridized. The nitrogen is involved in the π-bonding aromatic system using its unhybridized p orbital. The lone pair is in an sp2 orbital, projecting outward from the ring in the same plane as the σ bonds. Many analogues of pyridine are known where N is replaced by other heteroatoms . Substitution of one C–H in pyridine with a second N gives rise to the diazine heterocycles (C4H4N2), with the names pyridazine, pyrimidine, and pyrazine.Electric Literature of C6H6BrNO2S

Referemce:
Pyridine – Wikipedia,
Pyridine | C5H5N – PubChem

Li, Jin et al. published their research in Bioorganic & Medicinal Chemistry in 2005 | CAS: 343262-51-1

2-Bromo-5-(methylsulfonyl)pyridine (cas: 343262-51-1) belongs to pyridine derivatives. The pyridine ring occurs in many important compounds, including agrochemicals, pharmaceuticals, and vitamins. Several pyridine derivatives play important roles in biological systems. While its biosynthesis is not fully understood, nicotinic acid (vitamin B3) occurs in some bacteria, fungi, and mammals.Electric Literature of C6H6BrNO2S

In vitro and in vivo profile of 2-(3-di-fluoromethyl-5-phenylpyrazol-1-yl)-5-methanesulfonylpyridine, a potent, selective, and orally active canine COX-2 inhibitor was written by Li, Jin;Lynch, Michael P.;DeMello, Kristin Lundy;Sakya, Subas M.;Cheng, Hengmiao;Rafka, Robert J.;Bronk, Brian S.;Jaynes, Burton H.;Kilroy, Carolyn;Mann, Donald W.;Haven, Michelle L.;Kolosko, Nicole L.;Petras, Carol;Seibel, Scott B.;Lund, Lisa A.. And the article was included in Bioorganic & Medicinal Chemistry in 2005.Electric Literature of C6H6BrNO2S This article mentions the following:

The synthesis of a novel canine COX-2 selective inhibitor, 2-(3-difluoromethyl-5-phenylpyrazol-1-yl)-5-methanesulfonylpyridine, and its in vitro and in vivo profile are described. One pyrazole compound demonstrated excellent potency and selectivity for canine COX-2 in both in vitro and ex vivo whole blood assays. This novel COX-2 inhibitor also showed a good pharmacokinetic profile (pk) following oral (po), i.v. (iv), and s.c. dosing and demonstrated excellent in vivo efficacy in a canine synovitis model. In the experiment, the researchers used many compounds, for example, 2-Bromo-5-(methylsulfonyl)pyridine (cas: 343262-51-1Electric Literature of C6H6BrNO2S).

2-Bromo-5-(methylsulfonyl)pyridine (cas: 343262-51-1) belongs to pyridine derivatives. The pyridine ring occurs in many important compounds, including agrochemicals, pharmaceuticals, and vitamins. Several pyridine derivatives play important roles in biological systems. While its biosynthesis is not fully understood, nicotinic acid (vitamin B3) occurs in some bacteria, fungi, and mammals.Electric Literature of C6H6BrNO2S

Referemce:
Pyridine – Wikipedia,
Pyridine | C5H5N – PubChem