422550-77-4

Upstream product

• 77301-47-4 3-benzoylbenzoyl chloride 
• 6638-79-5 N,O-dimethylhydroxylamine*hydrochloride 
• 579-18-0 3-benzoylbenzoic acid 

Downstream Products

• 1268636-17-4 KPU-252-B₁ 
• 1268604-45-0 (3Z,6Z)-3-(3-benzoylbenzylidene)-6-((5-(2-methyl-pent-4-yn-2-yl)oxazol-4-yl)methylene)piperazine-2,5-dione 
• 52010-96-5 3-(hydroxy(phenyl)methyl)benzaldehyde 
• 1436713-98-2 (L,Z)-2-(5-(3-benzoylbenzylidene)-4-oxo-2-thioxothiazolidin-3-yl)-3-phenylpropanoic acid 
• 422550-69-4 3-(N,O-dimethylhydroxylaminocarbonyl)diphenylmethane 

Relevant academic research and scientific papers

Tubulin photoaffinity labeling study with a plinabulin chemical probe possessing a biotin tag at the oxazole

A new bioactive photoaffinity probe KPU-252-B1 (4) possessing a biotin tag on the oxazole ring of a potent plinabulin derivative KPU-244 (2) was synthesized via the CuI-catalyzed Huisgen's cycloaddition reaction to understand the precise binding mode of the diketopiperazine-based anti-microtubule agent plinabulin on tubulin. Probe 4 showed significant binding affinity toward tubulin and cytotoxicity against an HT-29 cells. A photoaffinity labeling study suggested that probe 4 specifically recognizes tubulin at a binding site that binds plinabulin or colchicine, most likely near or at the colchicine binding site, which is located at the interfacial region formed by α-and β-tubulin association. The results also demonstrated that probe 4 may serve as a useful plinabulin chemical probe to investigate the molecular mechanism by which anti-microtubule diketopiperazine derivatives operate.

Unique prototropy of meso-alkylidenyl carbaporphyrinoid possessing one meso-exocyclic double bond

Generic synthesis, identification of structural identity, unique prototropy and spectroscopic properties of meso-alkylidenyl-thia(m-benzi)porphyrinoid containing one exocyclic double bond at the meso-position were presented.

Design and synthesis of l- and d-phenylalanine derived rhodanines with novel C5-arylidenes as inhibitors of HCV NS5B polymerase

Hepatitis C virus (HCV) NS5B polymerase is a key target for anti-HCV therapeutics development. Herein, we report the synthesis and in vitro evaluation of anti-NS5B polymerase activity of a molecular hybrid of our previously reported lead compounds 1 (IC50 = 7.7 μM) and 2 (IC50 = 10.6 μM) as represented by hybrid compound 27 (IC 50 = 6.7 μM). We have explored the optimal substituents on the terminal phenyl ring of the 3-phenoxybenzylidene moiety in 27, by generating a set of six analogs. This resulted in the identification of compound 34 with an IC50 of 2.6 μM. To probe the role of stereochemistry towards the observed biological activity, we synthesized and evaluated the d-isomers 41 (IC50 = 19.3 μM) and 45 (IC50 = 5.4 μM) as enantiomers of the l-isomers 27 and 34, respectively. The binding site of compounds 32 and 34 was mapped to palm pocket-I (PP-I) of NS5B. The docking models of 34 and 45 within the PP-I of NS5B were investigated to envisage the molecular mechanism of inhibition.

Aza-and polyaza-naphthalenly ketones useful as hiv integrase inhibitors

Certain aza- and polyaza-naphthalenyl ketones including certain quinolinyl and naphthyridinyl ketones are described as inhibitors of HIV integrase and inhibitors of HIV replication. These compounds are useful in the prevention or treatment of infection by HIV and the treatment or the delay in the onset of AIDS, as compounds or pharmaceutically acceptable salts, or as ingredients in pharmaceutical compositions, optionally in combination with other antivirals, immunomodulators, antibiotics or vaccines. Methods of treating or delaying the onset of AIDS and methods of preventing or treating infection by HIV are also described.