tetano
Editor, Senior Moderator
Sci Rep
. 2025 Jan 4;15(1):767.
doi: 10.1038/s41598-024-81711-5. Exploring pyrazolines as potential inhibitors of NSP3-macrodomain of SARS-CoV-2: synthesis and in silico analysis
Rekha Joshi[SUP] 1 [/SUP], Harsh Gaikwad[SUP] 1 [/SUP], Bhavana Soge[SUP] 2 [/SUP], Abdulrahman Alshammari[SUP] 3 [/SUP], Norah A Albekairi[SUP] 3 [/SUP], Atul Kabra[SUP] 4 [/SUP], Usha Yashwante[SUP] 2 [/SUP], Baban Kolte[SUP] 5 6 [/SUP], Pradip Lokhande[SUP] 7 [/SUP], Rohan J Meshram[SUP] 8 [/SUP]
Affiliations
COVID-19 has proved to be a global health crisis during the pandemic, and the emerging JN.1 variant is a potential threat. Therefore, finding alternative antivirals is of utmost priority. In the current report, we present the synthesis of new and potential anti-viral pyrazoline compounds. Here we report a chemical scheme where β-aryl β-anilino ketones react with phenyl hydrazine in potassium hydroxide to give the corresponding 3,5-diarylpyrazoline. The protocol is applicable to a variety of β-amino ketones and tolerates several functional groups. This method is efficient and proceeds regioselectivity since the β-Anilino group acts as a protecting group for alkenes of chalcones. We identified the NSP3-microdomain (Mac-1) of SARS-CoV-2 as a putative target for newly synthesized triaryl-2-pyrazoline compounds. The molecular dynamics simulation-based free energy estimation suggests compounds 7a, 7d, 7 g, 7i, 7k, and 7 L as promising Mac-1 inhibitors. The detailed structural inspection of MD simulation trajectories sheds light on the structural and functional dynamics involved in the SARS-CoV-2 Mac-1. The data presented here is expected to guide the design and development of better anti-SARS-CoV-2 therapies.
Keywords: COVID-omicron XBB variant; Docking; Linear interaction energy; MMPBSA; Molecular dynamics simulations; NSP3-macrodomain; Regioselective synthesis; Triaryl-2-pyrazoline.
. 2025 Jan 4;15(1):767.
doi: 10.1038/s41598-024-81711-5. Exploring pyrazolines as potential inhibitors of NSP3-macrodomain of SARS-CoV-2: synthesis and in silico analysis
Rekha Joshi[SUP] 1 [/SUP], Harsh Gaikwad[SUP] 1 [/SUP], Bhavana Soge[SUP] 2 [/SUP], Abdulrahman Alshammari[SUP] 3 [/SUP], Norah A Albekairi[SUP] 3 [/SUP], Atul Kabra[SUP] 4 [/SUP], Usha Yashwante[SUP] 2 [/SUP], Baban Kolte[SUP] 5 6 [/SUP], Pradip Lokhande[SUP] 7 [/SUP], Rohan J Meshram[SUP] 8 [/SUP]
Affiliations
- PMID: 39755743
- PMCID: PMC11700119
- DOI: 10.1038/s41598-024-81711-5
COVID-19 has proved to be a global health crisis during the pandemic, and the emerging JN.1 variant is a potential threat. Therefore, finding alternative antivirals is of utmost priority. In the current report, we present the synthesis of new and potential anti-viral pyrazoline compounds. Here we report a chemical scheme where β-aryl β-anilino ketones react with phenyl hydrazine in potassium hydroxide to give the corresponding 3,5-diarylpyrazoline. The protocol is applicable to a variety of β-amino ketones and tolerates several functional groups. This method is efficient and proceeds regioselectivity since the β-Anilino group acts as a protecting group for alkenes of chalcones. We identified the NSP3-microdomain (Mac-1) of SARS-CoV-2 as a putative target for newly synthesized triaryl-2-pyrazoline compounds. The molecular dynamics simulation-based free energy estimation suggests compounds 7a, 7d, 7 g, 7i, 7k, and 7 L as promising Mac-1 inhibitors. The detailed structural inspection of MD simulation trajectories sheds light on the structural and functional dynamics involved in the SARS-CoV-2 Mac-1. The data presented here is expected to guide the design and development of better anti-SARS-CoV-2 therapies.
Keywords: COVID-omicron XBB variant; Docking; Linear interaction energy; MMPBSA; Molecular dynamics simulations; NSP3-macrodomain; Regioselective synthesis; Triaryl-2-pyrazoline.