Synthetic Route of C4H6N2On October 15, 2021 ,《Structure activity relationship (SAR) study identifies a quinoxaline urea analog that modulates IKKβ phosphorylation for pancreatic cancer therapy》 was published in European Journal of Medicinal Chemistry. The article was written by Sagar, Satish; Singh, Sarbjit; Mallareddy, Jayapal Reddy; Sonawane, Yogesh A.; Napoleon, John V.; Rana, Sandeep; Contreras, Jacob I.; Rajesh, Christabelle; Ezell, Edward L.; Kizhake, Smitha; Garrison, Jered C.; Radhakrishnan, Prakash; Natarajan, Amarnath. The article contains the following contents:
Genetic models validated Inhibitor of nuclear factor (NF) kappa B kinase beta (IKKβ) as a therapeutic target for KRAS mutation associated pancreatic cancer. Phosphorylation of the activation loop serine residues (S177, S181) in IKKβ is a key event that drives tumor necrosis factor (TNF) α induced NF-κB mediated gene expression. Here we conducted structure activity relationship (SAR) study to improve potency and oral bioavailability of a quinoxaline analog 13-197 that was previously reported as a NFκB inhibitor for pancreatic cancer therapy. The SAR led to the identification of a novel quinoxaline urea analog 84 that reduced the levels of p-IKKβ in dose- and time-dependent studies. When compared to 13-197, analog 84 was ∼2.5-fold more potent in TNFα-induced NFκB inhibition and ∼4-fold more potent in inhibiting pancreatic cancer cell growth. Analog 84 exhibited ∼4.3-fold greater exposure (AUC0-∞) resulting in ∼5.7-fold increase in oral bioavailability (%F) when compared to 13-197. Importantly, oral administration of 84 by itself and in combination of gemcitabine reduced p-IKKβ levels and inhibited pancreatic tumor growth in a xenograft model. After reading the article, we found that the author used 1-Methylpyrazole(cas: 930-36-9Synthetic Route of C4H6N2)
1-Methylpyrazole(cas: 930-36-9) belongs to pyrazoles. Pyrazoles and their related multiring analogs are common elements of a wide variety of bioactive compounds. These ring structures are rare in nature. A consequence of this is that they have previously been thought to be poor moieties to include in potential new drugs. Synthetic Route of C4H6N2
Referemce:
Pyrazole – Wikipedia,
Pyrazoles – an overview | ScienceDirect Topics